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/0PARCEL_NOParcel NumberADDRESS1Mailing Address Line 1ADDRESS2Mailing Address Line 2SITUS_STRESitus Street AddressSITUS_CITYSitus Citycurl -s 'https://map.co.thurston.wa.us/arcgis/rest/services/Thurston/Thurston_Parcels/FeatureServer/0/query?where=PARCEL_NO+LIKE+'%2521820%25'&outFields=PARCEL_NO,ADDRESS1,SITUS_STRE,SITUS_CITY,TOTAL_VALUE,ANNUAL_TAX&returnGeometry=false&f=json&resultRecordCount=10'
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/
Thurston County's Parcels layer exposes a parcel identifier (Parcel Number) and address fields (Mailing Address Line 1, Mailing Address Line 2, Situs Street Address, Situs City). Use it for address-to-PIN lookups and identifier queries. 5 of 13 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 2026-05-15.
/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 Thurston County actually publishes, not what you might expect from a national standard (there isn't one).
For background, see What is an APN?
map.co.thurston.wa.us serves Thurston County, Washington 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 Thurston County's FeatureServer 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.
Thurston County's layer is hosted by the county on map.co.thurston.wa.us. Public ArcGIS endpoints rarely rate-limit individual reads, but map.co.thurston.wa.us 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.