Public ArcGIS FeatureServer endpoint for Washington 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.arkansas.gov/arcgis/rest/services/FEATURESERVICES/Planning_Cadastre/FeatureServer/6parcelidParcel IDownernameOwner NamepstrnamStreet NameadrcityCityadrlabelFull Address Labelcurl -s 'https://gis.arkansas.gov/arcgis/rest/services/FEATURESERVICES/Planning_Cadastre/FeatureServer/6/query?where=countyfips%3D'05143'+AND+UPPER(ownername)+LIKE+UPPER('%25SMITH%25')&outFields=parcelid,ownername,adrlabel,countyfips&returnGeometry=false&f=json&resultRecordCount=10'https://gis.arkansas.gov/arcgis/rest/services/FEATURESERVICES/Planning_Cadastre/FeatureServer/6/query?where=countyfips='05143'+AND+UPPER(ownername)+LIKE+UPPER('%SMITH%')&outFields=parcelid,ownername,adrlabel,countyfips&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 |
| ownername | Owner Name | YES |
| adrnum | Address Number | NO |
| pstrnam | Street Name | YES |
| adrcity | City | YES |
| adrzip5 | ZIP Code | NO |
| adrlabel | Full Address Label | YES |
| countyfips | County FIPS (05143 = Washington) | NO |
| county | County Name | NO |
| assessvalue | Assessed Value | NO |
| totalvalue | Total Value | NO |
Washington County AR (Fayetteville metro; county seat Fayetteville; FIPS 05143; home to University of Arkansas) is served by the Arkansas statewide parcel layer. Filter countyfips='05143' to scope to Washington County. Same schema and endpoint as Pulaski and Benton counties (AR statewide FeatureServer/6). Washington County AR must not be confused with Washington County in other states. Verified 2026-06-20: SMITH query returns Fayetteville-area addresses.
Arkansas GIS Office (AGISO) — https://gis.arkansas.gov/
Washington County's Parcels layer exposes a parcel identifier (Parcel ID), owner names (Owner Name), and address fields (Street Name, Full Address Label). Use it for owner-name lookups and address-based parcel searches. 5 of 11 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 2026-06-20.
/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 Washington 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.