Public ArcGIS FeatureServer endpoint for Ada County parcel data. URL, supported fields, and a working sample query, copy it, or open it directly in the UrbanKit parcel lookup tool.
This page is the endpoint reference. If you came here to find a specific property, the Ada County parcel search runs this same layer in your browser, no account and no API key.
Search Ada County parcels →https://services2.arcgis.com/dgGjZc6xAH5m5JyP/arcgis/rest/services/Parcels/FeatureServer/5Field by field, whether any endpoint we index for Ada County answers it, and the evidence for each. We only call a field restricted when there is a stated reason we can cite. Everything else here is a fact about the services we index, not a claim about the law.
| Field | Status | Basis |
|---|---|---|
| APN | Answered | Documented in a field list on an endpoint we index. Not every row is populated. |
| Owner name | Not published | Ada County's public parcel layer publishes no owner name column. The closest field by name, HOMEEXEMPT, is a homeowner exemption amount in dollars rather than a name, so no query can return ownership here. Where to request it. |
| Owner mailing address | Not published | No endpoint we index for this county documents this field, so a query cannot ask for it. That is a fact about the services we index, not a legal restriction, and not a statement that the county holds no such record. Where to request it. |
| Site address | Answered | Documented in a field list on an endpoint we index. Not every row is populated. |
| Geometry | Answered | Documented in a field list on an endpoint we index. Not every row is populated. |
| Land use | Not published | No endpoint we index for this county documents this field, so a query cannot ask for it. That is a fact about the services we index, not a legal restriction, and not a statement that the county holds no such record. Where to request it. |
| Zoning | Answered | Documented in a field list on an endpoint we index. Not every row is populated. |
PARCELParcel NumberADDRESSProperty AddressPROPADDNUMAddress NumberPROPSTNMStreet Namecurl -s 'https://services2.arcgis.com/dgGjZc6xAH5m5JyP/arcgis/rest/services/Parcels/FeatureServer/5/query?where=UPPER(ADDRESS)+LIKE+UPPER('%25MAIN+ST%25')&outFields=PARCEL,ADDRESS,CITY_STATE,TOTALVALUE,ZONING&returnGeometry=false&f=json&resultRecordCount=10'https://services2.arcgis.com/dgGjZc6xAH5m5JyP/arcgis/rest/services/Parcels/FeatureServer/5/query?where=UPPER(ADDRESS)+LIKE+UPPER('%MAIN+ST%')&outFields=PARCEL,ADDRESS,CITY_STATE,TOTALVALUE,ZONING&returnGeometry=false&f=json&resultRecordCount=10Open this URL in a browser tab to see the raw ArcGIS JSON response.
| Field name | Label | Searchable |
|---|---|---|
| PARCEL | Parcel Number | YES |
| ADDRESS | Property Address | YES |
| PROPADDNUM | Address Number | YES |
| PROPSTNM | Street Name | YES |
| CITY_STATE | City and State | NO |
| TOTALVALUE | Total Assessed Value | NO |
| ZONING | Zoning Code | NO |
| ACRES | Acreage | NO |
| HOMEEXEMPT | Homeowner Exemption | NO |
| PROPYEAR | Property Year | NO |
| SUBNM | Subdivision Name | NO |
| CODEAREA | Tax Code Area | NO |
28 fields confirmed. This is the Ada County Assessor parcel layer backing the county's GIS parcel viewer. Key fields: PARCEL (parcel number), ADDRESS (full formatted address), property address components (PROPADDNUM, PROPPREDIR, PROPSTNM, PROPSTTYPE, PROPPOST, PROPUNIT, PROPUNUM), CITY_STATE, legal description lines (LEGAL1-LEGAL5), ZONING, BANKCODE, CODEAREA (tax code area), TOTALVALUE (total assessed value), HOMEEXEMPT (homeowner exemption amount), ACRES, SECTION, SUBNM (subdivision name). NOTE: Owner name is NOT available on this public REST layer. Ada County keeps ownership data in a separate non-public table. For owner lookup, use the Ada County Assessor property search portal at assessor.adacounty.id.gov. Ada County, ID is the Boise metropolitan area (FIPS 16001); Boise is the state capital of Idaho.
Ada County Assessor's Office GIS, https://www.adacounty.id.gov/assessor/gis/
Ada County's Parcel layer exposes a parcel identifier (Parcel Number) and address fields (Property Address, Address Number, Street Name). Use it for address-to-PIN lookups and identifier queries. 4 of 12 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 Ada County actually publishes, not what you might expect from a national standard (there isn't one).
For background, see What is an APN?
services2.arcgis.com serves Ada County, Idaho 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 Ada 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.
Ada County's layer is hosted on Esri ArcGIS Online. Public ArcGIS endpoints rarely rate-limit individual reads, but services2.arcgis.com 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.