Public ArcGIS MapServer endpoint for East Baton Rouge Parish County parcel data. URL, supported fields, and a working sample query — copy it, or open it directly in the UrbanKit parcel lookup tool.
https://maps.brla.gov/gis/rest/services/Cadastral/Tax_Parcel/MapServer/0/query?where=UPPER(OWNER)+LIKE+UPPER('%SMITH%')&outFields=ASSESSMENT_NUM,OWNER,OWNER_ADDRESS,PHYSICAL_ADDRESS&returnGeometry=false&f=json&resultRecordCount=10Open this URL in a browser tab to see the raw ArcGIS JSON response.
| Field name | Label | Searchable |
|---|---|---|
| ASSESSMENT_NUM | Assessment Number (Parcel ID) | YES |
| PRONO | Property Number | YES |
| OWNER | Owner Name | YES |
| OWNER_ADDRESS | Owner Address | NO |
| OWNER_CITY_STATE_ZIP | Owner City/State/ZIP | NO |
| PHYSICAL_ADDRESS | Physical Address | YES |
| SUBDIVISION | Subdivision | NO |
| WARD_SECTION | Ward/Section | NO |
| SALE_YEAR | Sale Year | NO |
| SUM_FAIR_MARKET_VALUE | Fair Market Value | NO |
| SUM_ASSESSED_VALUE | Assessed Value | NO |
East Baton Rouge Parish (Baton Rouge, pop. 456,000; state capital) Tax Parcel layer. Louisiana uses 'parish' instead of 'county' — East Baton Rouge Parish is the combined city/parish government. 21 fields confirmed: ID, ASSESSMENT_NUM, PRONO, OWNER, OWNER_ADDRESS, OWNER_CITY_STATE_ZIP, PHYSICAL_ADDRESS, SUBDIVISION, WARD_SECTION, LOT, BLOCK, LEGAL_DESCRIPTION, FLOOD_ZONE, SALE_YEAR, STATUS, SUM_HOMESTEAD_EXEMPTION, SUM_LOT_VALUE, SUM_LAND_VALUE, SUM_IMPROVEMENT_VALUE, SUM_FAIR_MARKET_VALUE, SUM_ASSESSED_VALUE. Verified 2026-05-15: SMITH returns Baton Rouge addresses (e.g., '12523 MERLIN AVE', '9758 W TAMS DR'). EBRGIS manages 200+ public datasets.
East Baton Rouge Parish / City of Baton Rouge GIS Program (EBRGIS) — https://web-ebrgis.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.