Ontario Address Change Tracker

We periodically compare each municipality's official open address list to spot new buildings, retired addresses, and corrections over time.

53 datasets 5.0M addresses tracked updated daily Source on GitHub ↗ i How it works

Every day each dataset is re-downloaded and diffed against the previous snapshot. History is kept as a Slowly-Changing-Dimension Type-2 table, so every address records the span of snapshots it was valid for — letting us replay exactly when an address first appeared, was corrected, or retired.

The hard part is identity: ESRI OBJECTIDs are reassigned on every republish, so records are matched on a stable source ID where one exists, or on a synthesized key (street + number + unit + rounded coordinates) otherwise. Adding a city is a config file, not code.

An independent civic-data project — not affiliated with any municipality. Each source keeps its own open licence.
Coverage of every dataset we observe
Active — changes observed Initial sync only — no changes yet Tracked — licence blocks publishing
City of Barrie
Open Government Licence - Barrie · last snapshot 2026-09-21 · 16 reports
latest: 5 address splits · 1 status change
63,375
+20 −1 ~10
i Fields Compared for changes
  • Street number (ADDRNUMBER)
  • Street name (SSTRNAME)
  • Unit (UNITNUMBER)
  • Full address (FULLADDR)
  • Coordinates (latitude, longitude)
  • ADDRESSID
  • PARCELID
  • SSTRDIR
  • SSTRSUFF
  • STATUS
Ignored (changes here are not counted)
  • COMMENT
City of Brampton
Creative Commons Attribution 4.0 (CC BY 4.0) · last snapshot 2026-09-22 · 91 reports
latest: 3 address splits
249,658
+20 −2 ~8
i Fields Compared for changes
  • Street number (CIVIC_NUMBER)
  • Street name (STREET_NAME)
  • Unit (UNIT_NO)
  • Full address (FULL_ADDRESS)
  • Coordinates (latitude, longitude)
  • ADDRESS_ID
  • ADDRESS_TYPE
  • BLOCK_PLAN
  • CITY
  • CITY_GRID
  • CON_NUM
  • GIS_ID
  • HERITAGE
  • LOT_NUM
  • POSTAL_CODE
  • PROP_CODE_DESC
  • PROVINCE
  • REG_PLAN_ASSUMP_DATE
  • SEC_PLAN_AREA
  • SITE_PLAN_NUMBER
  • STREET_DIRECTION
  • STREET_TYPE
  • TOWNSHIP
  • WARD
Ignored (changes here are not counted)
  • CITY_FILE
  • CONDO_PLAN_NUMBER
  • C_OF_A
  • DRAFT_PLAN_NUMBER
  • OCCUPANCY_DATE
  • PERMIT_ISSUEDATE
  • PERMIT_NO
  • PERMIT_TYPE
  • REG_PLAN_NUMBER
  • SUB_TYPE
  • WORK_TYPE
City of Brantford
Open Government Licence - Brantford · last snapshot 2026-09-18 · 25 reports
38,999
+1 −0 ~0
i Fields Compared for changes
  • Street number (STREETNUM)
  • Street name (STREETNAME)
  • Full address (FULLADDRESS)
  • Coordinates (latitude, longitude)
  • POSTALCODE
  • STNUMSUFF
  • STREETNUMIN
  • STREETTYPE
Ignored (changes here are not counted)

None — every source field is compared.
City of Burlington
Terms of Use for Open Data Burlington (2011) · last snapshot 2026-09-16 · 16 reports
60,355
+2 −1 ~0
i Fields Compared for changes
  • Street number (HOUSENUM)
  • Street name (STREET)
  • Unit (UNIT)
  • Full address (ADDRESS)
  • Coordinates (latitude, longitude)
  • CITY
  • COUNTRY
  • COUNTRYCODE
  • NAME
  • PROPCODE
  • PROPDESC
  • PROPINFOVALUE_WARD
  • PROPSTATUSCODE
  • PROPSTATUSDESC
  • PROVINCE
  • STRDIR
  • STRTYPE
  • UNITTYPE
Ignored (changes here are not counted)
  • LATITUDE
  • LONGITUDE
  • PROPERTYRSN
City of Cambridge
Open Government Licence - City of Cambridge · last snapshot 2026-08-07 · 9 reports
54,025
+14 −14 ~0
i Fields Compared for changes
  • Street number (HOUSE_NUMBER)
  • Street name (STREET_NAME)
  • Unit (UNIT_NUMBER)
  • Full address (ADDRESS_LABEL)
  • Coordinates (latitude, longitude)
  • ADDRESS_POINT_ID
  • STATUS
  • WARD_ID
Ignored (changes here are not counted)

None — every source field is compared.
City of Cornwall
Open Government Licence - City of Cornwall · last snapshot 2026-09-16 · 26 reports
20,692
+2 −1 ~23
i Fields Compared for changes
  • Street number (ST_NUMBER)
  • Street name (STREET)
  • Unit (UNIT)
  • Full address (ADDRESS)
  • Coordinates (latitude, longitude)
  • ADD_TYPE
  • AddressID
  • BUILDING
  • CITY
  • COUNTRY
  • DIRECTION
  • FLOOR
  • POLY_ID
  • POSTAL
  • PROVINCE
  • STREET_LNG
  • SUFFIX
Ignored (changes here are not counted)
  • LAST_EDIT
City of Greater Sudbury
Open Data Licence - City of Greater Sudbury · last snapshot 2026-09-22 · 89 reports
latest: 1 status change · 5 moved
70,123
+3 −0 ~7
i Fields Compared for changes
  • Street number (ADDRESSNUMBER)
  • Street name (FULLSTREETNAME)
  • Unit (UNIT_OR_AMENITY)
  • Full address (FULLADDRESSTEXT)
  • Coordinates (latitude, longitude)
  • ADDRESSALIAS
  • ADDRESSID
  • ADDRESSLIFECYCLESTATUS
  • ADDRESSNUMBERPREFIX
  • ADDRESSNUMBERSUFFIX
  • ALTERNATENAME1
  • ALTERNATENAME2
  • ALTERNATENAME3
  • COMMUNITY
  • NAME
  • STREETSUFFIX
  • STYPE
  • UNIT_AMENITY_TYPE
  • VERIFIED_DATE
Ignored (changes here are not counted)
  • ASSIGNEDADDRESSID
  • BASESTREETNAME
  • STREETTYPE
City of Guelph
Open Government Licence - City of Guelph · last snapshot 2026-09-17 · 32 reports
53,847
+1 −0 ~0
i Fields Compared for changes
  • Street number (STREETNO)
  • Street name (FULLNAME)
  • Unit (UNIT_NO)
  • Full address (ADDRESS)
  • Coordinates (latitude, longitude)
  • ADDID
  • ADDLOCINFO
  • HAS_UNIT
  • LANDMKNAME
  • NAME
  • PARITY
  • PLACE
  • POSTCODE
  • QUALIFIER
  • SEGMENTID
  • STATUS
  • STDIR
  • STNAME
  • STREETID
  • STREETNAME
  • STSUF
  • WARD
Ignored (changes here are not counted)
  • ADDID_TEXT
  • ADDLEG
  • AMAID
  • GPID
  • LABEL
  • LAT
  • LONG
  • PIN
  • ROLL_NO
  • STATION_RESPONSE_ORDER
  • UTM_X
  • UTM_Y
City of Hamilton
Open Data Licence – Hamilton · last snapshot 2026-09-14 · 33 reports
latest: 5 address splits
273,984
+43 −1 ~0
i Fields Compared for changes
  • Street number (NUMBER_COMPLETE)
  • Street name (FULL_STREET_NAME)
  • Unit (UNIT_NUMBER_COMPLETE)
  • Coordinates (latitude, longitude)
  • COMMUNITY
  • COUNTRY
  • MUNICIPALITY
  • POSTAL_CODE
  • PROVINCE
Ignored (changes here are not counted)
  • STREET_NAME
  • STREET_SUFFIX_DIRECTION
  • STREET_SUFFIX_TYPE
City of Kawartha Lakes
None published (disclaimer only, confirmed 2026-08-20) · last snapshot 2026-08-01 · 4 reports
44,205
+0 −0 ~0
i Fields Compared for changes
  • Street number (StreetNumber)
  • Street name (StreetNameFull)
  • Unit (UnitNumber)
  • Full address (FullAddress)
  • Coordinates (latitude, longitude)
  • ARUApproved
  • AddressID
  • HwyCountyNum
  • MultiUnitLot
  • PlaceName
  • SingleLowerTier
  • StreetNameAlt
  • StreetNumberPrefix
  • StreetNumberSuffix
Ignored (changes here are not counted)
  • StreetAddress
  • StreetDirectionAbrv
  • StreetDirectionSuffix
  • StreetNameBody
  • StreetNumSuffixConcat
  • StreetSegmentID
  • StreetTypeSuffix
  • StreetTypeSuffixAbrv
  • Xlong
  • Ylat
City of Kingston
Open Data Licence - City of Kingston · last snapshot 2026-09-22 · 65 reports
latest: 3 address splits
77,580
+6 −0 ~0
i Fields Compared for changes
  • Street number (ADDRESS_NUMBER)
  • Street name (STREET)
  • Unit (UNIT)
  • Full address (FULL_ADDRESS)
  • Coordinates (latitude, longitude)
  • ADDRESS_ID
  • ADDRESS_NUMBER_SUFFIX
  • DIRECTION_SUFFIX
  • ELECTORAL_DISTRICT_NAME
  • GARBAGE_DAY
  • MUNICIPALITY
  • NEIGHBOURHOOD
  • POSTAL_CODE
  • RECYCLING_DAY
Ignored (changes here are not counted)
  • COLLECTION_TYPE
  • STREET_BODY_NAME
  • STREET_TYPE_SUFFIX
  • UNIT_TYPE
City of Kitchener
Open Government Licence - The Corporation of the City of Kitchener · last snapshot 2026-09-22 · 10 reports
latest: 1 status change · 1 moved
132,254
+22 −0 ~2
i Fields Compared for changes
  • Street number (CIVIC_NO)
  • Street name (STREET)
  • Unit (UNIT)
  • Full address (ADDRESS)
  • Coordinates (latitude, longitude)
  • POLL
  • PROPERTY_UNIT_ID
  • STATUS
  • UNIT_TYPE
  • WARD
Ignored (changes here are not counted)
  • LATITUDE
  • LONGITUDE
  • PARCELID
  • ROADSEGMENTID
  • ROLL_REFERENCE
  • X_COORD
  • Y_COORD
City of London
Terms of Use - City of London Open Data · last snapshot 2026-09-02 · 9 reports
latest: 2 renumbered
143,126
+0 −0 ~2
i Fields Compared for changes
  • Street number (MunicipalNumber)
  • Street name (FullStreetName)
  • Unit (UnitNumber)
  • Full address (FullAddress)
  • Coordinates (latitude, longitude)
  • CondoNumber
  • ElectionWard
  • GIS_ID
  • MunicipalNumberQualifier
  • Status
  • StreetClassification
Ignored (changes here are not counted)
  • FullNumber
  • FullStreetName_ID
  • IntegerMunicipalNumber
  • StreetDirection
  • StreetName
  • StreetType
  • UnitFullAddress
City of Niagara Falls
Open Government Licence - Niagara Region · last snapshot 2026-09-03 · 5 reports
latest: 21 address splits · 1 renumbered
208,079
+75 −0 ~21
i Fields Compared for changes
  • Street number (Full_StreetNo)
  • Street name (StreetName)
  • Unit (Unit)
  • Coordinates (latitude, longitude)
  • GSmartID
  • LifeCycleStatus
  • Municipality
  • Qualifier
  • StreetDir
  • StreetType
Ignored (changes here are not counted)
  • StreetNo
  • Xcoord
  • Ycoord
City of Ottawa
Open Government Licence – City of Ottawa 2.0 · last snapshot 2026-09-21 · 53 reports
404,176
+17 −0 ~1
i Fields Compared for changes
  • Street number (ADDRNUM)
  • Street name (FULLNAME)
  • Unit (UNITID)
  • Full address (FULLADDR)
  • Coordinates (latitude, longitude)
  • ADDRTYPE
  • PI_MUNICIPAL_ADDRESS_ID
  • QUALIFIER
Ignored (changes here are not counted)

None — every source field is compared.
City of Quinte West
City of Quinte West Open Data Licence · last snapshot 2026-09-19 · 16 reports
20,303
+2 −0 ~0
i Fields Compared for changes
  • Street number (address_nu)
  • Street name (street_nam)
  • Unit (unit_num)
  • Full address (address)
  • Coordinates (latitude, longitude)
  • unit_type
  • ward
Ignored (changes here are not counted)
  • label
  • lat
  • long
City of Sarnia
City of Sarnia Open Data Terms of Use (OGL-Canada 2.0 based) · last snapshot 2026-08-20 · 2 reports
latest: 1 address split · 1 street rename
26,922
+56 −30 ~2
i Fields Compared for changes
  • Street number (STNUM)
  • Street name (STNAME)
  • Full address (ADDRESS)
  • Coordinates (latitude, longitude)
  • CITY
  • STDIR
  • STDIR_A
  • STTYPE
  • STTYPE_A
  • TOWNSHIP
Ignored (changes here are not counted)

None — every source field is compared.
City of Stratford
None published (confirmed 2026-08-20) · last snapshot 2026-08-20 · 1 report
14,873
baseline
i Fields Compared for changes
  • Street number (ST_NUMBER)
  • Street name (ST_NAME)
  • Unit (UNIT)
  • Full address (FULL_ADDRESS)
  • Coordinates (latitude, longitude)
  • Address
  • G_COLL
Ignored (changes here are not counted)

None — every source field is compared.
City of Thunder Bay
City of Thunder Bay Open Data Licence · last snapshot 2026-09-09 · 3 reports
latest: 1 boundary change
45,102
+9 −5 ~9
i Fields Compared for changes
  • Street number (ADDRESS_NUMBER)
  • Street name (STREET)
  • Full address (COMPLETE)
  • Coordinates (latitude, longitude)
  • ADDRESS
  • ADDRESS_QUALIFIER
  • CITY
  • PCL_PIN
  • PROVINCE
  • REFNAME
  • ROOT
  • ROWTYPE
  • RSN
  • SPLITLOC
  • TYPE
Ignored (changes here are not counted)
  • CTB_TYPE
City of Toronto
Open Government Licence – Toronto · last snapshot 2026-09-22 · 107 reports
latest: 1 place rename · 1 moved
525,440
+0 −0 ~3
i Fields Compared for changes
  • Street number (ADDRESS_NUMBER)
  • Street name (LINEAR_NAME_FULL)
  • Full address (ADDRESS_FULL)
  • Coordinates (latitude, longitude)
  • ADDRESS_POINT_ID
  • GENERAL_USE
  • GENERAL_USE_CODE
  • LINEAR_NAME_DESC
  • MAINT_STAGE
  • MUNICIPALITY
  • MUNICIPALITY_NAME
  • PLACE_NAME
  • PLACE_NAME_ALL
  • WARD
  • WARD_NAME
Ignored (changes here are not counted)
  • ADDRESS_CLASS
  • ADDRESS_CLASS_DESC
  • ADDRESS_ID
  • ADDRESS_ID_LINK
  • ADDRESS_POINT_ID_LINK
  • ADDRESS_STRING_ID
  • CENTRELINE_ID
  • CENTRELINE_MEASURE
  • CENTRELINE_OFFSET
  • CENTRELINE_SIDE
  • CLASS_FAMILY
  • CLASS_FAMILY_DESC
  • HI_NUM
  • HI_NUM_SUF
  • LINEAR_NAME
  • LINEAR_NAME_DIR
  • LINEAR_NAME_ID
  • LINEAR_NAME_TYPE
  • LO_NUM
  • LO_NUM_SUF
City of Waterloo
Open Government Licence – City of Waterloo · last snapshot 2026-06-09 · 1 report
55,541
+0 −0 ~0
i Fields Compared for changes
  • Street name (STREET_NM)
  • Full address (CIVIC_ADDR)
  • Coordinates (latitude, longitude)
  • ADDRESS_ID
  • SEGMENT_ID
  • WARD
Ignored (changes here are not counted)
  • LATITUDE
  • LONGITUDE
City of Windsor
Open Government Licence - City of Windsor v1.0 · last snapshot 2026-06-11 · 1 report
118,841
+0 −0 ~0
i Fields Compared for changes
  • Street number (street_address)
  • Street name (street_name)
  • Unit (unit_number)
  • Full address (Address)
  • Coordinates (latitude, longitude)
  • AmandaArea
  • Depth
  • Frontage
  • Legal1
  • Legal2
  • Legal3
  • PROP_RSN
  • PropCode
  • RollNumber
  • Ward
  • Zoning
  • gisid
  • propertyrsn
  • roll_number
  • street_direction
  • street_name_alias
  • street_suffix
Ignored (changes here are not counted)
  • JOIN_FID
  • Join_Count
  • TARGET_FID
  • X
  • Y
County of Brant
CC0 · last snapshot 2026-09-22 · 57 reports
19,357
+3 −1 ~0
i Fields Compared for changes
  • Street number (STREET_NUMBER)
  • Street name (STREET_NAME)
  • Unit (STREET_UNIT_NUMBER)
  • Full address (FULL_ADDRESS)
  • Coordinates (latitude, longitude)
  • CIVIC_ADDRESS_TYPE
  • PLACE_NAME
  • POSTAL_CODE
  • PROVINCE
  • STREET_DIRECTION_PREFIX
  • STREET_DIRECTION_SUFFIX
  • STREET_NUMBER_ALPHA
  • STREET_TYPE
Ignored (changes here are not counted)

None — every source field is compared.
County of Bruce
BGDISC Open Data Licence · last snapshot 2026-09-17 · 21 reports
latest: 1 address split
51,753
+4 −2 ~0
i Fields Compared for changes
  • Street number (AddrNum)
  • Street name (RoadName)
  • Unit (Unit)
  • Full address (CivicAddress)
  • Coordinates (latitude, longitude)
  • Municipality
Ignored (changes here are not counted)
  • ARN
County of Dufferin
Open Government Licence - County of Dufferin · last snapshot 2026-06-11 · 1 report
27,075
+0 −0 ~0
i Fields Compared for changes
  • Street number (STREETNUM)
  • Street name (STREETNAME)
  • Full address (FULLADDY)
  • Coordinates (latitude, longitude)
  • ID
Ignored (changes here are not counted)
  • EASTINGX
  • LATITUDEY
  • LONGITUDEX
  • NORTHINGY
County of Elgin
None published (confirmed 2026-08-20) · last snapshot 2026-06-11 · 1 report
21,785
+0 −0 ~0
i Fields Compared for changes
  • Street number (StrNUM)
  • Street name (StrFULL)
  • Unit (StrUNIT)
  • Full address (StrNUM_StrFULL)
  • Coordinates (latitude, longitude)
  • ARN
  • MUNI
  • StrNum2
Ignored (changes here are not counted)
  • Condition
  • x
  • y
County of Frontenac
Open Government Licence - County of Frontenac v1.0 · last snapshot 2026-09-22 · 19 reports
22,386
+2 −1 ~0
i Fields Compared for changes
  • Street number (StreetNumber)
  • Street name (StreetName)
  • Unit (UnitNumber)
  • Full address (Location)
  • Coordinates (latitude, longitude)
  • Municipality
  • Qualifier
  • UpperNumber
  • Verified
Ignored (changes here are not counted)

None — every source field is compared.
County of Hastings
Open Government Licence - The Corporation of the County of Hastings (not found published) · last snapshot 2026-09-22 · 49 reports
30,900
+6 −2 ~0
i Fields Compared for changes
  • Street number (House_No)
  • Street name (Rd_Name)
  • Unit (Unit)
  • Full address (Full_Add)
  • Coordinates (latitude, longitude)
  • GISCODE
  • House_Suf
  • Landmark_Name
  • MUNICIPALI
  • Rd_Dir
  • Rd_Suf
  • UNIT_TYPE
Ignored (changes here are not counted)
  • ADDRESS_NU
  • LAT
  • LONG
  • OBJECTID_12
  • RnoTXT2
  • STREET_NAM
  • UNIQUE_ID
  • UNIT_NUM
  • X
  • Y
County of Huron
Open Government Licence - The County of Huron · last snapshot 2026-09-19 · 15 reports
38,361
+3 −0 ~0
i Fields Compared for changes
  • Street number (StreetNumber)
  • Street name (StreetName)
  • Unit (Unit)
  • Full address (FullAddress)
  • Coordinates (latitude, longitude)
  • AddNum_Suf
  • Add_Number
  • HuronID
  • Mun
  • St_Name
  • St_PosDir
  • St_PosTyp
  • St_PreSep
  • St_PreTyp
  • Status
Ignored (changes here are not counted)
  • A3
  • FullAddress_Mun
County of Lambton
Open Government Licence - County of Lambton · last snapshot 2026-09-15 · 3 reports
56,982
+0 −0 ~173
i Fields Compared for changes
  • Street number (Add_Number)
  • Street name (St_Name)
  • Unit (Unit)
  • Full address (full_add)
  • Coordinates (latitude, longitude)
  • AddNum_Suf
  • Country
  • County
  • Inc_Muni
  • St_PosDir
  • St_PosTyp
  • St_PreDir
  • St_PreTyp
  • activedate
  • approveddate
  • currentstatus
  • pointtype
  • province
  • unitnumsuffix
Ignored (changes here are not counted)

None — every source field is compared.
County of Lennox and Addington
Open Government Licence - County of Lennox and Addington v2.0 · last snapshot 2026-09-17 · 23 reports
26,170
+1 −1 ~0
i Fields Compared for changes
  • Street number (ADD_LABEL)
  • Full address (ADDRESS)
  • Coordinates (latitude, longitude)
  • BELL_MUNIC
  • Number
Ignored (changes here are not counted)

None — every source field is compared.
County of Middlesex
None published beyond as-is disclaimer (confirmed 2026-08-20) · last snapshot 2026-08-20 · 1 report
31,569
baseline
i Fields Compared for changes
  • Street number (MUNNUMBER)
  • Street name (STREET_NAM)
  • Unit (UNIT)
  • Full address (FULLADDRES)
  • Coordinates (latitude, longitude)
  • MUNCODE
  • STREET_DIR
  • STREET_TYP
Ignored (changes here are not counted)

None — every source field is compared.
County of Perth
None published (confirmed 2026-08-20) · last snapshot 2026-09-08 · 2 reports
latest: 14 address splits
18,701
+112 −16 ~18
i Fields Compared for changes
  • Street number (Full_AddNum)
  • Unit (Unit)
  • Full address (Full_Add)
  • Coordinates (latitude, longitude)
  • Addtl_Loc
  • Inc_Muni
  • Property_Number
Ignored (changes here are not counted)
  • Latitude
  • Longitude
County of Peterborough
County website Terms of Use (restrictive - no copying to other websites) · last snapshot 2026-09-18
Tracked, but the publisher's licence does not permit republishing reports — none are available here.
40,608
licence not compatible
County of Renfrew
Restrictive site disclaimer (no redistribution without permission) · last snapshot 2026-09-11
Tracked, but the publisher's licence does not permit republishing reports — none are available here.
46,854
licence not compatible
County of Simcoe
Open Government Licence - Simcoe County · last snapshot 2026-09-22 · 21 reports
190,396
+3 −0 ~0
i Fields Compared for changes
  • Street number (STNUM)
  • Street name (FULLNAME)
  • Unit (Unit)
  • Full address (FULL_ADDRESS)
  • Coordinates (latitude, longitude)
  • ADDRESSID
  • DIR
  • DIRPREF
  • MUNI
  • PREFIX
  • STNAME
  • SUFFIX
Ignored (changes here are not counted)
  • ARN
  • ChildARN
  • X_COORD
  • Y_COORD
County of Wellington
None published (confirmed 2026-08-20) · last snapshot 2026-09-22 · 19 reports
42,953
+2 −1 ~0
i Fields Compared for changes
  • Street number (Address)
  • Street name (WC_FullNam)
  • Unit (Unit)
  • Coordinates (latitude, longitude)
  • Municipality
  • RoadClass
  • UrbanCentre
  • WC_Dir
  • WC_Name
  • WC_Number
  • WC_Prefix
  • WC_Sign
  • WC_Suffix
Ignored (changes here are not counted)

None — every source field is compared.
District Municipality of Muskoka
Custom terms - no reuse grant (King's Printer copyright) · last snapshot 2026-09-18 · 17 reports
66,492
+0 −0 ~0
i Fields Compared for changes
  • Street number (StreetNumber)
  • Street name (StreetName)
  • Unit (StreetUnit)
  • Full address (Location)
  • Coordinates (latitude, longitude)
  • Municipality
  • PropertyNum
  • StreetAlias
  • StreetQual
Ignored (changes here are not counted)

None — every source field is compared.
Haldimand County
Open Government Licence - Haldimand County v1.0 · last snapshot 2026-09-22 · 6 reports
26,602
+1 −0 ~0
i Fields Compared for changes
  • Street number (ADDR_HN)
  • Street name (ADDR_SN)
  • Unit (ADDR_UN)
  • Full address (FullAddress)
  • Coordinates (latitude, longitude)
  • ADDR_PD
  • ADDR_PT
  • ADDR_SD
  • ADDR_ST
  • ADDR_UT
  • EMILY_PROJECT
  • IssCivic
  • PCL_RN
  • RANK
  • Status
  • TMP_PCL_RN
  • ZONE_MUN
Ignored (changes here are not counted)
  • CENTROID_X
  • CENTROID_Y
Municipality of Chatham-Kent
None published (confirmed 2026-08-20) · last snapshot 2026-07-24 · 12 reports
58,809
+61 −373 ~0
i Fields Compared for changes
  • Street number (ADDRESS_NUMBER)
  • Street name (STREET_NAME)
  • Full address (BASE_ADDRESS)
  • Coordinates (latitude, longitude)
  • ADDRESS_ID
  • COMMUNITY_NAME
  • COMMUNITY_TYPE
  • GISID
  • STREET_DIR
Ignored (changes here are not counted)

None — every source field is compared.
Norfolk County
Norfolk County Open Data Licence Agreement · last snapshot 2026-08-20 · 1 report
35,119
baseline
i Fields Compared for changes
  • Street number (NUMBER_)
  • Street name (ROAD_NAME)
  • Unit (UnitNumber)
  • Full address (CIVIC_ADD)
  • Coordinates (latitude, longitude)
  • Bell_Dir
  • Bell_Name
  • Bell_Suf
  • CityViewID
  • NGIS_RD_ID
  • ROLLNUM
  • TYPE
Ignored (changes here are not counted)
  • LAT
  • LONG
Regional Municipality of Durham
Open Government Licence – City of Oshawa · last snapshot 2026-09-15 · 13 reports
latest: 1 status change
253,560
+0 −0 ~1
i Fields Compared for changes
  • Street number (CIVIC_NUM)
  • Street name (ROAD_NAME)
  • Unit (UNIT_NUM)
  • Coordinates (latitude, longitude)
  • CIVIC_SFX
  • DIR_SHORT
  • MUNICIPALITY
  • MXADDRESSCODE
  • MXCREATIONSTATE
  • MXORGID
  • REGION_ID
  • ROAD_DIR
  • ROAD_TYPE
  • TOWN
  • TYPE_SHORT
  • UNIT
  • UNIT_RANGE
  • UNIT_TYPE
Ignored (changes here are not counted)
  • POSTAL_CODE
Regional Municipality of Peel
Open Data Licence - Regional Municipality of Peel v1.0 · last snapshot 2026-06-11 · 1 report
503,923
+0 −0 ~0
i Fields Compared for changes
  • Street number (STREETNUM)
  • Street name (STREETNAME)
  • Unit (UNIT_IDENTIFIER)
  • Coordinates (latitude, longitude)
  • HOUSESTYLE
  • LANDUSE
  • LINK_ID
  • MUNICIPALITY
  • ROPADRID
  • SIDE_OF_RD
  • STREETDIRECTION
  • STREETTYPE
  • WARD
Ignored (changes here are not counted)
  • LATITUDE
  • LONGITUDE
Regional Municipality of York
York Region Open Data Licence · last snapshot 2026-09-13 · 58 reports
431,826
+0 −0 ~0
i Fields Compared for changes
  • Street number (ADDRESS_NUMBER)
  • Street name (FULL_STREET_NAME)
  • Unit (SUITE_NUMBER)
  • Full address (FULL_CIVIC_ADDR)
  • Coordinates (latitude, longitude)
  • ADDRS_PNT_TYPE
  • ADD_NUM_SUFFIX
  • COUNTRY
  • LIFESTATUS
  • MAIL_ADDRESS_NUMBER
  • MAIL_ADDRESS_NUMBER_SUFFIX
  • MAIL_COMMUNITY_NAME
  • MAIL_FULL_ADDRESS_TEXT
  • MAIL_POSTAL_CODE
  • MAIL_PROVINCE
  • MAIL_STATUS
  • MAIL_STREET_NAME
  • MAIL_STREET_TYPE
  • MAIL_SUITE_NUMBER
  • MAIL_UNIT_DESIGNATOR
  • MUNICIPALITY
  • PNT_GIS_ID
  • PREFIX_DIRECTION
  • PREFIX_TYPE
  • STREET_NAME
  • STREET_NAME_ID
  • STREET_TYPE
  • SUFFIX_DIRECTION
  • UNIT_DESIGNATOR
Ignored (changes here are not counted)
  • PARID
  • PRO_DATE
The Corporation of the County of Prince Edward
Open Government Licence - The Corporation of the County of Prince Edward v1.0 (sibling items; not stamped on this item) · last snapshot 2026-08-20 · 1 report
27,393
baseline
i Fields Compared for changes
  • Street number (Add_Number)
  • Street name (St_Name)
  • Unit (Unit)
  • Coordinates (latitude, longitude)
  • ADDRCLASS_pec
  • AddNum_Suf
  • Addtl_Loc
  • Building
  • CAPTUREMETH_pec
  • COMMENT_pec
  • Country
  • County
  • DiscrpAgID
  • Effective
  • EntrancePermitNumber
  • Inc_Muni
  • LandmkName
  • NGUID
  • POINTTYPE_pec
  • Place_Type
  • Placement
  • SADDGUID_pec
  • STATUS_pec
  • St_PosTyp
  • St_PreDir
  • St_PreTyp
  • State
Ignored (changes here are not counted)

None — every source field is compared.
Town of Amherstburg
None published (confirmed 2026-08-20) · last snapshot 2026-08-20 · 1 report
10,924
baseline
i Fields Compared for changes
  • Street number (Add1)
  • Street name (FullStName)
  • Coordinates (latitude, longitude)
  • ARN
  • Add2
  • GISID
  • Municipali
  • Type
Ignored (changes here are not counted)

None — every source field is compared.
Town of Cobourg
Town of Cobourg Open Data Terms of Use (revised November 1, 2021) · last snapshot 2026-08-20
Tracked, but the publisher's licence does not permit republishing reports — none are available here.
7,837
licence not compatible
Town of Halton Hills
Open Data License - Town of Halton Hills · last snapshot 2026-08-20 · 1 report
21,900
baseline
i Fields Compared for changes
  • Street number (STR_NUM)
  • Street name (STR_NAME)
  • Unit (STR_UNIT)
  • Full address (ADDR_FULL)
  • Coordinates (latitude, longitude)
  • ADDR_COMM
  • ADDR_ID
  • ADDR_STAT
  • ADDR_TYPE
  • STR_DIR
  • STR_FULL
  • STR_PREF
  • STR_SUFF
  • TOHH
Ignored (changes here are not counted)
  • ADDRE
  • ADDRN
  • Latitude
  • Longitude
Town of Milton
Open Government Licence - Milton · last snapshot 2026-09-17 · 46 reports
46,409
+0 −0 ~0
i Fields Compared for changes
  • Street number (ADDRESS_NUM)
  • Street name (STREET_NAME)
  • Unit (UNIT_NUMBER)
  • Full address (FULL_ADDRESS)
  • Coordinates (latitude, longitude)
  • ADU
  • ADU_UNIT_NO
  • Address_ID
  • BLOCK
  • DESCRIPTION
  • GEOSTNAME
  • HISTORY
  • LOT
  • POLL
  • STATUS
  • STREET_TYPE
  • ST_DIR_SUFFIX
  • SUBDIVISION_PLAN
  • WARD
Ignored (changes here are not counted)
  • ASSIGNED_BY
  • DISPLAY_NAME
  • LABEL_ANGLE
  • PROP_RSN
Town of Oakville
Open Government Licence — Town of Oakville · last snapshot 2026-09-22 · 11 reports
71,131
+46 −0 ~0
i Fields Compared for changes
  • Street number (STREET_NUM)
  • Street name (SNAME)
  • Unit (UNIT)
  • Full address (ADDRESS)
  • Coordinates (latitude, longitude)
  • LABEL
  • STREET_DIR
  • STREET_NAME
  • STREET_TYPE
  • SUFFIX
Ignored (changes here are not counted)

None — every source field is compared.
United Counties of Leeds and Grenville
Open Government Licence - United Counties of Leeds and Grenville v1.0 · last snapshot 2026-09-01 · 4 reports
latest: 1 address split · 17 moved
54,177
+44 −9 ~90
i Fields Compared for changes
  • Street number (CIVICNUM)
  • Street name (STREET)
  • Unit (UNITNUM)
  • Full address (ADDRESSAGOL)
  • Coordinates (latitude, longitude)
  • ADDRESS911
  • ARN
  • GEOTOWNSHP
  • Id
  • LABEL
  • MUN
  • OWNER
  • REFORMLOC
  • TYPE
Ignored (changes here are not counted)

None — every source field is compared.
United Counties of Stormont, Dundas and Glengarry
Proprietary - all rights reserved (item licenseInfo) · last snapshot 2026-09-17
Tracked, but the publisher's licence does not permit republishing reports — none are available here.
31,641
licence not compatible
West Parry Sound Geography Network
Open Government License - Township of The Archipelago (v2, based on OGL-Canada 2.0) · last snapshot 2026-08-20 · 1 report
21,703
baseline
i Fields Compared for changes
  • Street number (CivicNumber)
  • Street name (CivicAddress)
  • Unit (CivicUnit)
  • Full address (Civic_FullAddress)
  • Coordinates (latitude, longitude)
  • CODE
  • Comments
  • Municipality
  • Questions
  • Retired
  • Rollnumber
  • Verified
Ignored (changes here are not counted)
  • CreationDate
  • ModificationDate
13 sources probed but not added
City of Peterborough
Licence re-checked 2026-08-20: the Address item now carries custom Open Data Terms of Use instead of the old blanket proprietary label - but the grant covers copying the UNMODIFIED datasets only, so publishing derived diff reports is still not clearly licensed. Kept skipped. The surrounding County of Peterborough is tracked separately.
Proprietary licence
City of Belleville
gis.city.belleville.on.ca services root is empty (and its TLS cert is broken). Re-probed 2026-08-20: the city's new AGOL org (BellevilleGIS, ~60 public services) has no address layer, and Hastings County's CivicAddresses excludes the separated city.
Dead endpoint
Grey County
Re-hunted 2026-08-20: maps.grey.ca turns out to be the county's Hub - full catalogue enumerated (roads, official plan, transit), no addresses or 911 layers. geo.grey.ca / restgeo.grey.ca still down; the outage is persistent, not transient.
No address layer
Oxford County
Server recovered 2026-08-20 (56,658-row OXFORD_CivicAddress verified, folder literally named OpenData) but the county's published GIS-data terms say the data 'must not be used or posted on an external website' and site content 'cannot be duplicated... without express written permission'. Onboarding stopped at the licence gate; ask gis@oxfordcounty.ca whether the open-data channel has an actual open licence.
Proprietary licence
Northumberland County
Re-probed 2026-08-20: the server is back (moved /arcgis to /server) but the full service sweep shows roads/parks/wards only - no address points. Cobourg (recovered separately) now partially covers the county.
No address layer
City of Sault Ste. Marie
A stable hosted view now exists (33,356 rows, actively maintained - the old date-versioned-URL objection is moot), but the only published terms are the SooMaps click-through: 'The data served through this interface is not for commercial use, this includes mapservices that the interface consumes.' Non-commercial-only; onboarding stopped 2026-08-20. Borderline - a free tracker is arguably non-commercial; operator may overrule, or ask the city GIS to stamp the view with an open licence.
Proprietary licence
Lanark County
Re-hunted 2026-08-20: the public map is a CommunityPAL MapGuide viewer by vendor CGIS Spatial Solutions - no ArcGIS REST, no AGOL content, no downloads. Needs an inquiry to the county or the vendor (Timmins is on the same stack; one ask could unlock both).
Not found
Haliburton County
A usable polygon address fabric exists (33,980 rows; centroids work, verified 2026-08-20) but the GIS site's Terms of Use grant only 'view and print a single copy' and expressly prohibit copying, publishing, derivative works and 'screen scraping, database scraping' - the hardest terms seen in the catalogue. Stopped at the licence gate; a data-sharing ask to the county is the only path in.
Proprietary licence
Essex County
Re-hunted 2026-08-20: the county's real open-data hub was found (county + 7 municipalities) but holds centerlines/bridges/LiDAR - no address points in the full catalogue. Amherstburg (recovered separately) is the lone member with points.
No address layer
North Bay
A public CivicAddress_Point layer exists (21,964 rows) but the city's terms at northbay.ca/legal - which the GIS hub's own Terms of Use link points to - say geospatial content may not 'be copied onto any other website without the written agreement of or licence by the City'. Stopped at the licence gate 2026-08-20. The data was also static since April 2023, so the loss is small; a waiver ask to the city is the path in.
Proprietary licence
Timmins
Re-hunted 2026-08-20: only a CommunityPAL MapGuide viewer by vendor CGIS Spatial Solutions (same stack as Lanark County) - no ArcGIS REST, no AGOL org. One vendor/city inquiry could unlock both.
Not found
Owen Sound
Re-hunted 2026-08-20: the city's new public GIS (PUBLIC_GIS_WFL1, 15 layers) has zoning/parks/transit/parcels but no address points; weak fallback is address attributes on the Parcels polygons.
No address layer
Kenora
Re-hunted 2026-08-20: city AGOL org is live (13 public services - zoning, roads, ownership) but publishes no address or parcel-address layer.
No address layer