Public ArcGIS MapServer endpoint for Hamilton County parcel data. URL, supported fields, and a working sample query, copy it, or open it directly in the UrbanKit parcel lookup tool.
https://mapsdev.hamiltontn.gov/hcwa03/rest/services/Live_Parcels/MapServer/0PBA_NUMParcel Book Account NumberGISLINKGIS Link (Parcel ID)OWNERNAME1Owner Name 1ADDRESSSite AddressSTNAMEStreet Namecurl -s 'https://mapsdev.hamiltontn.gov/hcwa03/rest/services/Live_Parcels/MapServer/0/query?where=UPPER(OWNERNAME1)+LIKE+UPPER('%25SMITH%25')&outFields=PBA_NUM,OWNERNAME1,ADDRESS,GISLINK&returnGeometry=false&f=json&resultRecordCount=10'https://mapsdev.hamiltontn.gov/hcwa03/rest/services/Live_Parcels/MapServer/0/query?where=UPPER(OWNERNAME1)+LIKE+UPPER('%SMITH%')&outFields=PBA_NUM,OWNERNAME1,ADDRESS,GISLINK&returnGeometry=false&f=json&resultRecordCount=10Open this URL in a browser tab to see the raw ArcGIS JSON response.
| Field name | Label | Searchable |
|---|---|---|
| PBA_NUM | Parcel Book Account Number | YES |
| GISLINK | GIS Link (Parcel ID) | YES |
| OWNERNAME1 | Owner Name 1 | YES |
| OWNERNAME2 | Owner Name 2 | NO |
| ADDRESS | Site Address | YES |
| STNUM | Street Number | NO |
| STNAME | Street Name | YES |
| MAP | Map Number | NO |
| PARCEL | Parcel Code | NO |
Hamilton County (Chattanooga, pop. 375,000) Live_Parcels layer, service name 'Live' indicates real-time feed from the assessor. Service is on mapsdev.hamiltontn.gov (hcwa03 subdirectory). 15 fields confirmed: OBJECTID, PARCEL_TYP, PBA_NUM, GISLINK, OWNERNAME1/2, STNUM, DIRPFX, STNAME, TYPESFX, ADDRESS, MAP, GROUP_, PARCEL. PBA_NUM is the full parcel book/account number (e.g., '033006 00302P000'); GISLINK is the trimmed parcel ID. Verified 2026-05-15: SMITH returns addresses like '16909 DAYTON PIKE', '703 GRAYSVILLE RD'. Note: distinct from Hamilton County OH (Cincinnati, FIPS 39061) in the atlas. SERVICE RETIRED (verified 2026-06-06): Live_Parcels/MapServer was removed from mapsdev.hamiltontn.gov ('Could not find service'). No public REST replacement exists -- Live_RealProperty is a 155-record county-owned-property inventory, not a parcel layer, and assessor.hamiltontn.gov has no REST API. Status set to unreachable pending a county-side replacement.
Hamilton County Geospatial Technology, https://gis.hamiltontn.gov/
Hamilton County's Parcels layer exposes a parcel identifier (GIS Link (Parcel ID)), owner names (Owner Name 1), and address fields (Site Address, Street Name). Use it for owner-name lookups and address-based parcel searches. 5 of 9 listed fields accept queries; the rest are returned on read but not indexed for search. Served as an ArcGIS MapServer layer, which supports query operations but not write operations; last checked 2026-06-06; currently unreachable.
/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 Hamilton County actually publishes, not what you might expect from a national standard (there isn't one).
For background, see What is an APN?
mapsdev.hamiltontn.gov serves Hamilton County, Tennessee 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 Hamilton County's MapServer layer on 2026-06-06 and it was unreachable on that check. 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.
Hamilton County's layer is hosted by the county on mapsdev.hamiltontn.gov. Public ArcGIS endpoints rarely rate-limit individual reads, but mapsdev.hamiltontn.gov 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.