Public ArcGIS FeatureServer endpoint for Milwaukee County parcel data. URL, supported fields, and a working sample query, copy it, or open it directly in the UrbanKit parcel lookup tool.
https://services2.arcgis.com/s1wgJQKbKJihhhaT/arcgis/rest/services/Milwaukee_County_Parcels_Property_Information_view/FeatureServer/58TAXKEYTax Key (parcel identifier)PARCEL_KEYParcel KeyOWNERNAME1Owner Name (Primary)OWNERNAME2Owner Name (Secondary)OWNERNAME3Owner Name (Tertiary)OWNERADDROwner Street AddressHOUSENRProperty House NumberSTREETNAMEProperty Street Namecurl -s 'https://services2.arcgis.com/s1wgJQKbKJihhhaT/arcgis/rest/services/Milwaukee_County_Parcels_Property_Information_view/FeatureServer/58/query?where=UPPER(OWNERNAME1)+LIKE+UPPER('%25SMITH%25')&outFields=TAXKEY,OWNERNAME1,OWNERNAME2,HOUSENR,STREETNAME,MUNINAME&returnGeometry=false&f=json&resultRecordCount=10'https://services2.arcgis.com/s1wgJQKbKJihhhaT/arcgis/rest/services/Milwaukee_County_Parcels_Property_Information_view/FeatureServer/58/query?where=UPPER(OWNERNAME1)+LIKE+UPPER('%SMITH%')&outFields=TAXKEY,OWNERNAME1,OWNERNAME2,HOUSENR,STREETNAME,MUNINAME&returnGeometry=false&f=json&resultRecordCount=10Open this URL in a browser tab to see the raw ArcGIS JSON response.
| Field name | Label | Searchable |
|---|---|---|
| TAXKEY | Tax Key (parcel identifier) | YES |
| PARCEL_KEY | Parcel Key | YES |
| OWNERNAME1 | Owner Name (Primary) | YES |
| OWNERNAME2 | Owner Name (Secondary) | YES |
| OWNERNAME3 | Owner Name (Tertiary) | YES |
| OWNERADDR | Owner Street Address | YES |
| OwnerCtySt | Owner City and State | NO |
| OwnerZip | Owner ZIP Code | NO |
| HOUSENR | Property House Number | YES |
| STREETNAME | Property Street Name | YES |
| MUNINAME | Municipality Name | NO |
| MCD | Municipal Jurisdiction Code | NO |
| LEGALDESCR | Legal Description | NO |
| CONDO_NAME | Condominium Name | NO |
| ACRES | Acreage | NO |
| Class | Property Class | NO |
42 fields confirmed. This is Milwaukee County's property information view joined to the cadastral parcel layer. Key fields: TAXKEY (primary parcel identifier), PARCEL_KEY, MAP_ID, RECORD_DATE, MCD (municipal jurisdiction code), COMMENT, RecSource, RecDate, MUNINAME (municipality: City of Milwaukee, Bayside, Cudahy, etc.), OWNERNAME1/2/3, OWNERADDR, OwnerCtySt, OwnerZip, HOUSENR, HouseNrHi, HouseNrSfx, STREETDIR, STREETNAME, STREETTYPE, SuffixDir, UNITNUMBER, LEGALDESCR, CONDO_NAME, UNIT_TYPE, ACRES, Class, Code. Owner query confirmed: UPPER(OWNERNAME1) LIKE '%SMITH%' returns real parcels in various municipalities. Milwaukee County, WI is the largest county in Wisconsin and the heart of the Milwaukee metropolitan area (FIPS 55079).
Milwaukee County Register of Deeds / Land Records, https://county.milwaukee.gov/EN/Land-Records
Milwaukee County's Milwaukee County Property Information layer exposes a parcel identifier (Tax Key (parcel identifier)), owner names (Owner Name (Primary), Owner Name (Secondary), Owner Name (Tertiary), Owner Street Address), and address fields (Property Street Name). Use it for owner-name lookups and address-based parcel searches. 8 of 16 listed fields accept queries; the rest are returned on read but not indexed for search. Served as an ArcGIS FeatureServer layer, so edits and applyEdits operations are technically exposed (read access only is published here); last verified 2026-05-15.
/query?where=…&outFields=*&f=jsonto the URL. The sample query above is a working example you can paste into a browser tab to see the raw JSON response.Counties publish parcel data through their own ArcGIS Server installations, each with its own schema. One county uses APN, another uses PIN, a third uses PARCEL_ID. Some expose owner names; others keep them on a separate assessor's portal. The searchable fields list above reflects what Milwaukee County actually publishes, not what you might expect from a national standard (there isn't one).
For background, see What is an APN?
services2.arcgis.com serves Milwaukee County, Wisconsin parcels over public ArcGIS REST, but, like most county servers, it may not send the CORS headers a browser needs for a cross-origin fetch. If a direct browser call fails, the layer still works from curl, Postman, or a server-side script; the UrbanKit parcel lookup tool proxies the request, so a search that succeeds there confirms the layer is genuinely public.
We last verified Milwaukee County's FeatureServer layer on 2026-05-15. County GIS teams move services without notice, so if you hit a fresh 404, tell us and we'll re-check. Atlas entries are re-verified on a rolling basis.
Milwaukee County's layer is hosted on Esri ArcGIS Online. Public ArcGIS endpoints rarely rate-limit individual reads, but services2.arcgis.com can throttle heavy automated traffic at the host level. Page through results with resultOffset / resultRecordCount and request only the fields you need. There's no API key and no charge from the county.