Public ArcGIS MapServer endpoint for Brown County parcel data. URL, supported fields, and a working sample query, copy it, or open it directly in the UrbanKit parcel lookup tool.
https://gis.browncountywi.gov/arcgis/rest/services/ParcelPolygons/MapServer/1PARCELIDParcel IDOWNERNME1Owner Name 1OWNERNME2Owner Name 2SITEADRESSSite AddressPSTLADRESSPostal Addresscurl -s 'https://gis.browncountywi.gov/arcgis/rest/services/ParcelPolygons/MapServer/1/query?where=UPPER(OWNERNME1)%20LIKE%20UPPER('%25SMITH%25')&outFields=PARCELID,OWNERNME1,SITEADRESS&returnGeometry=false&f=json&resultRecordCount=10'https://gis.browncountywi.gov/arcgis/rest/services/ParcelPolygons/MapServer/1/query?where=UPPER(OWNERNME1) LIKE UPPER('%SMITH%')&outFields=PARCELID,OWNERNME1,SITEADRESS&returnGeometry=false&f=json&resultRecordCount=10Open this URL in a browser tab to see the raw ArcGIS JSON response.
| Field name | Label | Searchable |
|---|---|---|
| PARCELID | Parcel ID | YES |
| OWNERNME1 | Owner Name 1 | YES |
| OWNERNME2 | Owner Name 2 | YES |
| SITEADRESS | Site Address | YES |
| PSTLADRESS | Postal Address | YES |
| Municipality | Municipality | NO |
Brown County (Green Bay metro, county seat Green Bay) hosts ParcelPolygons/MapServer with 2 layers; layer 1 (TaxParcel) is the polygon tax parcel layer with ownership fields. Fields include PARCELID, ParcelType, Municipality, MunicipalZoning, OWNERNME1, OWNERNME2, PSTLADRESS, SITEADRESS, PublicOwner, FirstName1/LastName1/FirstName2/LastName2/StreetName fields (individual name parts), RecentOwnershipChangeDate, Parcels2005/2010/2014/2017 (historical vintage flags), Surveys, ROD (Register of Deeds). Query confirmed live: UPPER(OWNERNME1) LIKE '%SMITH%' returns real results (e.g., 'SMITH SUSAN C REVOCABLE TRUST' at '2674 FOXFIRE DR'). Layer 0 (TaxParcel-smallScale) is the same polygon layer rendered at smaller scales. ParcelslDynamic/MapServer/6 (TaxParcels) is an alternate service containing the same ownership data. The county's BrownDog Online GIS map at gis.browncountywi.gov is the public viewer. PublicOwner field is present but may be null for many records, use OWNERNME1/OWNERNME2 for owner search.
Brown County Land Information Office, https://www.browncountywi.gov/departments/planning-and-land-services/land-information-office/
Brown County's TaxParcel layer exposes a parcel identifier (Parcel ID), owner names (Owner Name 1, Owner Name 2), and address fields (Site Address, Postal Address). Use it for owner-name lookups and address-based parcel searches. 5 of 6 listed fields accept queries; the rest are returned on read but not indexed for search. Served as an ArcGIS MapServer layer, which supports query operations but not write operations; 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 Brown County actually publishes, not what you might expect from a national standard (there isn't one).
For background, see What is an APN?
gis.browncountywi.gov serves Brown 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 Brown County's MapServer 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.
Brown County's layer is hosted by the county on gis.browncountywi.gov. Public ArcGIS endpoints rarely rate-limit individual reads, but gis.browncountywi.gov 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.