Public ArcGIS FeatureServer endpoint for Thurston County parcel data. URL, supported fields, and a working sample query — copy it, or open it directly in the UrbanKit parcel lookup tool.
https://map.co.thurston.wa.us/arcgis/rest/services/Thurston/Thurston_Parcels/FeatureServer/0/query?where=PARCEL_NO+LIKE+'%21820%'&outFields=PARCEL_NO,ADDRESS1,SITUS_STRE,SITUS_CITY,TOTAL_VALUE,ANNUAL_TAX&returnGeometry=false&f=json&resultRecordCount=10Open this URL in a browser tab to see the raw ArcGIS JSON response.
| Field name | Label | Searchable |
|---|---|---|
| PARCEL_NO | Parcel Number | YES |
| ADDRESS1 | Mailing Address Line 1 | YES |
| ADDRESS2 | Mailing Address Line 2 | YES |
| SITUS_STRE | Situs Street Address | YES |
| SITUS_CITY | Situs City | YES |
| SITUS_ZIP | Situs ZIP | NO |
| TOTAL_ACRES | Total Acres | NO |
| BLDG_VALUE | Building Value | NO |
| LAND_VALUE | Land Value | NO |
| TOTAL_VALUE | Total Assessed Value | NO |
| ANNUAL_TAX | Annual Tax | NO |
| YEAR_BUILT | Year Built | NO |
| USE_CODE | Use Code | NO |
45 fields confirmed including PARCEL_NO, ADDRESS1, ADDRESS2, CITY, STATE, ZIP, COUNTRY, SITUS_STRE, SITUS_CITY, SITUS_ZIP, SD_NAME, LEGAL_DESC, TOTAL_ACRES, BLDG_VALUE, LAND_VALUE, TOTAL_VALUE, ANNUAL_TAX, STATUS_IND, PROP_SUBTY, O_NEIGHBOR, PROP_TYPE, INSPCT_CYC, REGION, MULT_PARCL, SALE_DATE, SALE_PRICE, SALE_VRFY, USE_CODE, SIGMA_YEAR, TAXABLE, EXEMPT_TY, LOCAL_IND, TCA, CURR_USE, INCORP, YEAR_BUILT, EFF_YR_BUI, RES_QUAL, RES_COND, REC_VOLPAG, SECTTIE, PARENT, MapSource, GlobalID. Live query confirmed: PARCEL_NO LIKE '%21820%' returns Thurston County parcels with mailing address and value data. NOTE: Owner name is NOT on this public layer per WA State law; ADDRESS1/2 is the mailing address (generally owner's address). Data from ASCEND and SIGMA databases. Item ID: 4ca0091703b345f8a72f68a4d173d9be. maxRecordCount=1000.
Thurston County GeoData Center / Assessor's Department — https://gisdata-thurston.opendata.arcgis.com/
/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.