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/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
/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 this county actually publishes — not what you might expect from a national standard (there isn't one).
For background, see What is an APN?
Many county servers allow public reads but block browser cross-origin requests. The UrbanKit parcel lookup tool fetches directly from your browser; if it works there, the layer is technically public. For your own integration, you may need a same-origin proxy or server-side fetch.
Possibly — counties move services without warning. We re-verify entries weekly and flag stale ones. If you're seeing a fresh 404, please let us know and we'll update the listing.
Most are. Public ArcGIS layers don't typically rate-limit individual reads, but heavy programmatic use can trigger throttling at the host level. Be respectful — query what you need.