Ontario Address Change Tracker

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

42 datasets 4.6M 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
City of Barrie
Open Government Licence - Barrie · last snapshot 2026-06-11 · 1 report
63,313
+0 −0 ~0
i Fields Compared for changes
  • Street number (ADDRNUMBER)
  • Street name (SSTRNAME)
  • Unit (UNITNUMBER)
  • Full address (FULLADDR)
  • Coordinates (latitude, longitude)
  • ADDRESSID
  • COMMENT
  • OBJECTID_1
  • PARCELID
  • SSTRDIR
  • SSTRSUFF
  • STATUS
Ignored (changes here are not counted)
  • LASTUPDATE
City of Brampton
Creative Commons Attribution 4.0 (CC BY 4.0) · last snapshot 2026-06-20 · 10 reports
248,387
+26 −0 ~112
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_FILE
  • CITY_GRID
  • CONDO_PLAN_NUMBER
  • CON_NUM
  • C_OF_A
  • DRAFT_PLAN_NUMBER
  • GIS_ID
  • HERITAGE
  • LOT_NUM
  • OCCUPANCY_DATE
  • PERMIT_ISSUEDATE
  • PERMIT_NO
  • PERMIT_TYPE
  • POSTAL_CODE
  • PROP_CODE_DESC
  • PROVINCE
  • REG_PLAN_ASSUMP_DATE
  • REG_PLAN_NUMBER
  • SEC_PLAN_AREA
  • SITE_PLAN_NUMBER
  • STREET_DIRECTION
  • STREET_TYPE
  • SUB_TYPE
  • TOWNSHIP
  • WARD
  • WORK_TYPE
Ignored (changes here are not counted)

None — every source field is compared.
City of Brantford
Open Government Licence - Brantford · last snapshot 2026-06-20 · 7 reports
38,905
+114 −0 ~0
i Fields Compared for changes
  • Street number (STREETNUM)
  • Street name (STREETNAME)
  • Full address (FULLADDRESS)
  • Coordinates (latitude, longitude)
  • OBJECTID_1
  • POSTALCODE
  • STNUMSUFF
  • STREETNUMIN
  • STREETTYPE
Ignored (changes here are not counted)

None — every source field is compared.
City of Burlington
City of Burlington Terms of Use · last snapshot 2026-06-17 · 2 reports
60,326
+0 −0 ~0
i Fields Compared for changes
  • Street number (HOUSENUM)
  • Street name (STREET)
  • Unit (UNIT)
  • Full address (ADDRESS)
  • Coordinates (latitude, longitude)
  • CITY
  • COUNTRY
  • COUNTRYCODE
  • LATITUDE
  • LONGITUDE
  • NAME
  • PROPCODE
  • PROPDESC
  • PROPERTYRSN
  • PROPINFOVALUE_WARD
  • PROPSTATUSCODE
  • PROPSTATUSDESC
  • PROVINCE
  • STRDIR
  • STRTYPE
  • UNITTYPE
Ignored (changes here are not counted)

None — every source field is compared.
City of Cambridge
Open Government Licence - City of Cambridge · last snapshot 2026-06-11 · 1 report
53,998
+0 −0 ~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 2026-06-20 · 3 reports
20,593
+7 −0 ~4
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
  • LAST_EDIT
  • POLY_ID
  • POSTAL
  • PROVINCE
  • STREET_LNG
  • SUFFIX
Ignored (changes here are not counted)

None — every source field is compared.
City of Greater Sudbury
Open Data Licence - City of Greater Sudbury · last snapshot 2026-06-20 · 10 reports
latest: 1 moved
70,019
+0 −0 ~3
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
  • ASSIGNEDADDRESSID
  • BASESTREETNAME
  • COMMUNITY
  • NAME
  • STREETSUFFIX
  • STREETTYPE
  • STYPE
  • UNIT_AMENITY_TYPE
  • VERIFIED_DATE
Ignored (changes here are not counted)
  • CREATEDATE
  • LASTUPDATE
City of Guelph
Open Government Licence - City of Guelph · last snapshot 2026-06-19 · 4 reports
53,889
+0 −0 ~0
i Fields Compared for changes
  • Street number (STREETNO)
  • Street name (FULLNAME)
  • Unit (UNIT_NO)
  • Full address (ADDRESS)
  • Coordinates (latitude, longitude)
  • ADDID
  • ADDLEG
  • ADDLOCINFO
  • AMAID
  • GPID
  • HAS_UNIT
  • LABEL
  • LANDMKNAME
  • LAT
  • LONG
  • NAME
  • PARITY
  • PIN
  • PLACE
  • POSTCODE
  • QUALIFIER
  • ROLL_NO
  • SEGMENTID
  • STATUS
  • STDIR
  • STNAME
  • STREETID
  • STREETNAME
  • STSUF
  • UTM_X
  • UTM_Y
  • WARD
Ignored (changes here are not counted)

None — every source field is compared.
City of Hamilton
Open Data Licence – Hamilton · last snapshot 2026-06-18 · 4 reports
273,088
+0 −0 ~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
  • STREET_NAME
  • STREET_SUFFIX_DIRECTION
  • STREET_SUFFIX_TYPE
Ignored (changes here are not counted)

None — every source field is compared.
City of Kawartha Lakes
Not identified · last snapshot 2026-06-12 · 2 reports
44,177
+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
  • StreetAddress
  • StreetDirectionAbrv
  • StreetDirectionSuffix
  • StreetNameAlt
  • StreetNameBody
  • StreetNumSuffixConcat
  • StreetNumberPrefix
  • StreetNumberSuffix
  • StreetSegmentID
  • StreetTypeSuffix
  • StreetTypeSuffixAbrv
  • Xlong
  • Ylat
Ignored (changes here are not counted)

None — every source field is compared.
City of Kingston
Open Data Licence - City of Kingston · last snapshot 2026-06-19 · 8 reports
77,144
+2 −0 ~2
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
  • COLLECTION_TYPE
  • DIRECTION_SUFFIX
  • ELECTORAL_DISTRICT_NAME
  • GARBAGE_DAY
  • MUNICIPALITY
  • NEIGHBOURHOOD
  • POSTAL_CODE
  • RECYCLING_DAY
  • STREET_BODY_NAME
  • STREET_TYPE_SUFFIX
  • UNIT_TYPE
Ignored (changes here are not counted)

None — every source field is compared.
City of Kitchener
Open Government Licence - The Corporation of the City of Kitchener · last snapshot 2026-06-16 · 2 reports
131,908
+0 −0 ~0
i Fields Compared for changes
  • Street number (CIVIC_NO)
  • Street name (STREET)
  • Unit (UNIT)
  • Full address (ADDRESS)
  • Coordinates (latitude, longitude)
  • PARCELID
  • POLL
  • PROPERTY_UNIT_ID
  • ROADSEGMENTID
  • ROLL_REFERENCE
  • STATUS
  • UNIT_TYPE
  • WARD
  • X_COORD
  • Y_COORD
Ignored (changes here are not counted)
  • UPDATE_DATE
City of London
City of London Terms of Use · last snapshot 2026-06-11 · 1 report
142,890
+0 −0 ~0
i Fields Compared for changes
  • Street number (MunicipalNumber)
  • Street name (FullStreetName)
  • Unit (UnitNumber)
  • Full address (FullAddress)
  • Coordinates (latitude, longitude)
  • CondoNumber
  • ElectionWard
  • FullNumber
  • FullStreetName_ID
  • GIS_ID
  • IntegerMunicipalNumber
  • MunicipalNumberQualifier
  • Status
  • StreetClassification
  • StreetDirection
  • StreetName
  • StreetType
  • UnitFullAddress
Ignored (changes here are not counted)
  • LastEditDate
City of Niagara Falls
Open Government Licence - Niagara Region · last snapshot 2026-06-10 · 2 reports
207,845
+0 −0 ~0
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)
  • CreateDate
  • StreetNo
  • Xcoord
  • Ycoord
City of Ottawa
Open Government Licence – City of Ottawa 2.0 · last snapshot 2026-06-19 · 8 reports
402,901
+0 −0 ~0
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)
  • CREATED_DATE
  • MODIFIED_DATE
City of Quinte West
City of Quinte West Open Data Licence · last snapshot 2026-06-18 · 4 reports
20,281
+0 −0 ~0
i Fields Compared for changes
  • Street number (address_nu)
  • Street name (street_nam)
  • Unit (unit_num)
  • Full address (address)
  • Coordinates (latitude, longitude)
  • label
  • lat
  • long
  • objectid_1
  • unit_type
  • ward
Ignored (changes here are not counted)

None — every source field is compared.
City of Sarnia
Not identified · last snapshot 2026-06-11 · 1 report
26,896
+0 −0 ~0
i Fields Compared for changes
  • Street number (STNUM)
  • Street name (STNAME)
  • Full address (ADDRESS)
  • Coordinates (latitude, longitude)
  • CITY
  • OBJECTID_1
  • STDIR
  • STDIR_A
  • STTYPE
  • STTYPE_A
  • TOWNSHIP
Ignored (changes here are not counted)
  • created_date
  • created_user
  • last_edited_date
  • last_edited_user
City of Thunder Bay
City of Thunder Bay Open Data Licence · last snapshot 2026-06-11 · 1 report
45,049
+0 −0 ~0
i Fields Compared for changes
  • Street number (ADDRESS_NUMBER)
  • Street name (STREET)
  • Full address (COMPLETE)
  • Coordinates (latitude, longitude)
  • ADDRESS
  • ADDRESS_QUALIFIER
  • CITY
  • CTB_TYPE
  • PCL_PIN
  • PROVINCE
  • REFNAME
  • ROOT
  • ROWTYPE
  • RSN
  • SPLITLOC
  • TYPE
Ignored (changes here are not counted)

None — every source field is compared.
City of Toronto
Open Government Licence – Toronto · last snapshot 2026-06-19 · 65 reports
525,453
+0 −0 ~0
i Fields Compared for changes
  • Street number (ADDRESS_NUMBER)
  • Street name (LINEAR_NAME_FULL)
  • Full address (ADDRESS_FULL)
  • Coordinates (latitude, longitude)
  • ADDRESS_POINT_ID
  • ADDRESS_STATUS
  • 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
  • LATITUDE
  • LONGITUDE
  • OBJECTID_1
  • SEGMENT_ID
  • WARD
Ignored (changes here are not counted)

None — every source field is compared.
City of Windsor
City of Windsor Terms of Use · 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)
  • created_date
  • created_user
  • last_edited_date
  • last_edited_user
County of Brant
Not identified · last snapshot 2026-06-20 · 9 reports
19,326
+2 −0 ~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)
  • CREATED_DATE
  • EDITED_DATE
County of Bruce
BGDISC Open Data Licence · last snapshot 2026-06-18 · 2 reports
51,667
+0 −0 ~0
i Fields Compared for changes
  • Street number (AddrNum)
  • Street name (RoadName)
  • Unit (Unit)
  • Full address (CivicAddress)
  • Coordinates (latitude, longitude)
  • ARN
  • Municipality
Ignored (changes here are not counted)

None — every source field is compared.
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)
  • EASTINGX
  • ID
  • LATITUDEY
  • LONGITUDEX
  • NORTHINGY
Ignored (changes here are not counted)

None — every source field is compared.
County of Elgin
Not identified · 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
  • Condition
  • MUNI
  • StrNum2
  • x
  • y
Ignored (changes here are not counted)

None — every source field is compared.
County of Frontenac
Not identified · last snapshot 2026-06-19 · 2 reports
22,353
+0 −0 ~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)
  • EditDate
County of Hastings
Open Government Licence - The Corporation of the County of Hastings · last snapshot 2026-06-20 · 6 reports
30,819
+2 −1 ~0
i Fields Compared for changes
  • Street number (House_No)
  • Street name (Rd_Name)
  • Unit (Unit)
  • Full address (Full_Add)
  • Coordinates (latitude, longitude)
  • ADDRESS_NU
  • GISCODE
  • House_Suf
  • LAT
  • LONG
  • Landmark_Name
  • MUNICIPALI
  • OBJECTID_12
  • Rd_Dir
  • Rd_Suf
  • RnoTXT2
  • STREET_NAM
  • UNIQUE_ID
  • UNIT_NUM
  • UNIT_TYPE
  • X
  • Y
Ignored (changes here are not counted)
  • DateEdit
County of Huron
Open Government Licence - The County of Huron · last snapshot 2026-06-20 · 3 reports
38,252
+59 −1 ~0
i Fields Compared for changes
  • Street number (StreetNumber)
  • Street name (StreetName)
  • Unit (Unit)
  • Full address (FullAddress)
  • Coordinates (latitude, longitude)
  • A3
  • AddNum_Suf
  • Add_Number
  • FullAddress_Mun
  • HuronID
  • Mun
  • St_Name
  • St_PosDir
  • St_PosTyp
  • St_PreSep
  • St_PreTyp
Ignored (changes here are not counted)
  • DateUpdate
County of Lambton
Open Government Licence - County of Lambton · last snapshot 2026-06-10 · 1 report
56,897
+0 −0 ~0
i Fields Compared for changes
  • Street number (STNUM)
  • Street name (STNAME)
  • Full address (ADDRESS)
  • Coordinates (latitude, longitude)
  • CITY
  • MUNICIPALITY
  • STDIR
  • STDIR_A
  • STTYPE
  • STTYPE_A
Ignored (changes here are not counted)
  • UPDATED
County of Lennox and Addington
Not identified · last snapshot 2026-06-18 · 2 reports
26,095
+0 −0 ~0
i Fields Compared for changes
  • Street number (Number)
  • Full address (ADDRESS)
  • Coordinates (latitude, longitude)
  • ADD_LABEL
  • BELL_MUNIC
  • GlobalID_1
Ignored (changes here are not counted)

None — every source field is compared.
County of Peterborough
Not identified · last snapshot 2026-06-17 · 3 reports
40,525
+0 −0 ~0
i Fields Compared for changes
  • Street number (ADDRNUM)
  • Street name (FULLNAME)
  • Full address (FULLADDR)
  • Coordinates (latitude, longitude)
  • AddressCla
  • MUNICIPALI
  • PLACENAME
  • SITEADDID
Ignored (changes here are not counted)

None — every source field is compared.
County of Renfrew
Not identified · last snapshot 2026-06-15 · 3 reports
39,023
+0 −0 ~0
i Fields Compared for changes
  • Street number (Add_Number)
  • Street name (St_Name)
  • Unit (Unit)
  • Full address (Full_Address)
  • Coordinates (latitude, longitude)
  • A1
  • A2
  • A3
  • A4
  • ADDRRANGE
  • AddNum_Cmp
  • AddNum_Suf
  • CAPTUREMETH
  • Comment
  • Country
  • DiscrpAgID
  • Effective
  • Latitude
  • Longitude
  • NGUID
  • POINTTYPE
  • Placement
  • RollNumber
  • STATUS
  • Site
  • St_PosDir
  • St_PosTyp
  • St_PreDir
  • St_PreTyp
  • SubSite
  • UnitPreTyp
  • UnitValue
Ignored (changes here are not counted)
  • DateUpdate
County of Wellington
Not identified · last snapshot 2026-06-11 · 1 report
42,892
+0 −0 ~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
Not identified · last snapshot 2026-06-11 · 1 report
66,180
+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.
Municipality of Chatham-Kent
Not identified · last snapshot 2026-06-13 · 3 reports
59,206
+0 −0 ~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.
Regional Municipality of Durham
Open Government Licence – City of Oshawa · last snapshot 2026-06-18 · 4 reports
253,559
+0 −0 ~0
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
  • POSTAL_CODE
  • REGION_ID
  • ROAD_DIR
  • ROAD_TYPE
  • TOWN
  • TYPE_SHORT
  • UNIT
  • UNIT_RANGE
  • UNIT_TYPE
Ignored (changes here are not counted)
  • EDIT_DATE
Regional Municipality of Peel
Not identified · 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
  • LATITUDE
  • LINK_ID
  • LONGITUDE
  • MUNICIPALITY
  • ROPADRID
  • SIDE_OF_RD
  • STREETDIRECTION
  • STREETTYPE
  • WARD
Ignored (changes here are not counted)

None — every source field is compared.
Regional Municipality of York
York Region Open Data Licence · last snapshot 2026-06-20 · 9 reports
431,788
+0 −0 ~431,788
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
  • PARID
  • PNT_GIS_ID
  • PREFIX_DIRECTION
  • PREFIX_TYPE
  • PRO_DATE
  • STREET_NAME
  • STREET_NAME_ID
  • STREET_TYPE
  • SUFFIX_DIRECTION
  • UNIT_DESIGNATOR
Ignored (changes here are not counted)
  • CREATE_DATE
  • MODDATE
Town of Milton
Not identified · last snapshot 2026-06-18 · 5 reports
46,260
+0 −65 ~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
  • ASSIGNED_BY
  • Address_ID
  • BLOCK
  • DESCRIPTION
  • DISPLAY_NAME
  • GEOSTNAME
  • HISTORY
  • LABEL_ANGLE
  • LOT
  • POLL
  • PROP_RSN
  • STATUS
  • STREET_TYPE
  • ST_DIR_SUFFIX
  • SUBDIVISION_PLAN
  • WARD
Ignored (changes here are not counted)

None — every source field is compared.
Town of Oakville
Open Government Licence — Town of Oakville · last snapshot 2026-06-10 · 1 report
71,051
+0 −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)
  • created_date
  • created_user
  • last_edited_date
  • last_edited_user
United Counties of Leeds and Grenville
Not identified · last snapshot 2026-06-11 · 1 report
54,008
+0 −0 ~0
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
  • OBJECTID_1
  • OWNER
  • REFORMLOC
  • TYPE
Ignored (changes here are not counted)

None — every source field is compared.
United Counties of Stormont, Dundas and Glengarry
Not identified · last snapshot 2026-06-18 · 5 reports
31,858
+0 −0 ~0
i Fields Compared for changes
  • Street number (Address_Nu)
  • Street name (Street_Nam)
  • Unit (UnitNum)
  • Full address (LabelFull)
  • Coordinates (latitude, longitude)
  • Civic_Num
  • EmilyProj
  • Label
  • Municipali
  • SDGCivicID
  • Settlement
  • StrNamAlia
  • Unique_ID
  • Unit_Type
Ignored (changes here are not counted)
  • AddDate
  • EditDate
20 sources probed but not added
City of Peterborough
Hosted layer is published 'Proprietary - All rights reserved' (OSM red); not republished. The surrounding County of Peterborough is added separately.
Proprietary licence
City of Belleville
gis.city.belleville.on.ca returns empty; no ArcGIS Online migration found.
Dead endpoint
Norfolk County
services1.arcgis.com CivicAddresses layer is token-secured (HTTP 499).
Empty / secured
Simcoe County
maps.simcoe.ca Search_Layers_Dynamic/0 returns 404; no open address layer found via search.
Dead endpoint
Grey County
Official service_grey org publishes only boundary/reference layers (no civic address points); self-hosted geo.grey.ca / restgeo.grey.ca are dead (502).
No address layer
Oxford County
public.oxfordcounty.ca 404s; an ArcGIS Online search for 'Oxford County Address Points' returns City of Oxford, MISSISSIPPI (wrong place) - not added.
Dead endpoint
Northumberland County
maps.northumberlandcounty.ca 404s; search returns Union/Snyder County, Pennsylvania (wrong place).
Dead endpoint
Haldimand County
maps.haldimandcounty.on.ca redirects to a maintenance page.
Dead endpoint
Prince Edward County
maps.thecounty.ca returns empty; the county's ArcGIS Online org exposes only a 'Property Info' layer, not clean civic addresses.
No address layer
Town of Amherstburg
mapamherstburg.ca is live but the only layer is parcel/assessment data (mailing addresses, no parsed civic address points).
No address layer
Middlesex County (Lucan Biddulph, Newbury, North Middlesex, Southwest Middlesex, Strathroy-Caradoc, Thames Centre)
The shared maps.middlesex.ca ArcGIS server is entirely unreachable, taking all six member-municipality address layers with it.
Dead endpoint
Town of Cobourg
maps.cobourg.ca returns empty.
Dead endpoint
West Parry Sound District
wpsgn.ca ArcGIS server returns an HTML error page, not a queryable layer.
Dead endpoint
City of Sault Ste. Marie
SSMIC publishes only date-versioned layers (Collection_Addresses_<month>_<year>); the URL would 404 on the next republish, so it can't be tracked over time.
Unstable URL
Perth County
No official ArcGIS Online open-data address service located; the catalogued OpenAddresses cache is also dead.
Not found
Lanark County
No official ArcGIS Online open-data address service located via search.
Not found
Haliburton County
No official ArcGIS Online open-data address service located via search.
Not found
Halton Region (Halton Hills)
No region-wide open address layer found; member towns Oakville, Milton and Burlington are tracked individually, leaving Halton Hills uncovered.
Not found
Essex County
OpenAddresses cache is deprecated (0 bytes); ArcGIS Online search returns US/untrusted date-versioned copies.
Not found
North Bay, Timmins, Collingwood, Owen Sound, Innisfil, Kenora, Stratford
Off-catalogue cities probed via ArcGIS Online search: no official municipal open-data address service surfaced (only US/student/unrelated results).
Not found