Public ArcGIS MapServer endpoint for Marion 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.co.marion.or.us/arcgis/rest/services/Public/Parcels/MapServer/0/query?where=UPPER(OWNERNAME)+LIKE+UPPER('%SMITH%')&outFields=TAXLOT,TAXACCT,OWNERNAME,SITUS,ACRES,RMVTOTAL&returnGeometry=false&f=json&resultRecordCount=10Open this URL in a browser tab to see the raw ArcGIS JSON response.
| Field name | Label | Searchable |
|---|---|---|
| TAXLOT | Tax Lot Number | YES |
| TAXACCT | Tax Account Number | YES |
| OWNERNAME | Owner Name | YES |
| SITUS | Situs Address | YES |
| ACRES | Map Acreage | NO |
| RMVLND | Real Market Value (Land) | NO |
| RMVIMP | Real Market Value (Improvements) | NO |
| RMVTOTAL | Real Market Value (Total) | NO |
| ASSDVAL | Assessed Value | NO |
| TAXCODE | Tax Code Area | NO |
| ZONECODE | Zoning Code | NO |
| YEARBUILT | Year Built | NO |
46 fields confirmed including OBJECTID, SHAPE, TAXLOT, TAXACCT, OTHERACCTS, ALT_TAXLOT, ALT_TAXACCT, STREETNUM, PRE_DIR, STREETNAME, STREETTYPE, POST_DIR, UNITNUM, SITUS, SITUSCSZ, PLATNAME, BLOCK, LOT, ACRES, LASTUPDATE, INSTNUM, INSTTYPE, INSTDATE, SALEPRICE, OWNERNAME, OWNERADDR, OWNERCSZ, ZONECODE, ZONEAUTH, ZONEWEB, YEARBUILT, BLDGAREA, LIVINGAREA, PROPCLASS, PRPCLSDESC, RMVLND, RMVIMP, RMVTOTAL, ASSDVAL, TAXCODE, CITY, SCHLDIST, FIREDIST, REFLINK, MAPLINK, TAXLOTNS. Owner name confirmed live: OWNERNAME field returns real owner names (e.g., 'SMITH, BENJAMIN C 25% & SMITH, CYNTHIA 25%...'). Covers Salem metro and all of Marion County. SITUS is the combined situs address string; SITUSCSZ is the city-state-ZIP. Capabilities: Map, Query, Data. maxRecordCount=1000.
Marion County GIS / Marion County Assessment & Taxation — https://gis.co.marion.or.us/
/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.