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.
This page is the endpoint reference. If you came here to find a specific property, the Hamilton County parcel search runs this same layer in your browser, no account and no API key.
Search Hamilton County parcels →https://mapsdev.hamiltontn.gov/hcwa03/rest/services/Live_Parcels/MapServer/0Field by field, whether any endpoint we index for Hamilton 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 | Answered | Documented in a field list on an endpoint we index. Not every row is populated. |
| 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 | 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. |
PBA_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 verified 2026-08-29.
/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 2026-08-29. 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.