Public ArcGIS MapServer endpoint for Orleans 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://gis.nola.gov/arcgis/rest/services/apps/property3/MapServer/15/query?where=UPPER(OWNERNME1)+LIKE+UPPER('%SMITH%')&outFields=PARCELID,OWNERNME1,SITEADDRESS,PSTLADDRESS,PSTLCITY&returnGeometry=false&f=json&resultRecordCount=10Open this URL in a browser tab to see the raw ArcGIS JSON response.
| Field name | Label | Searchable |
|---|---|---|
| PARCELID | Parcel ID | YES |
| TAXBILLID | Tax Bill ID | YES |
| OWNERNME1 | Owner Name 1 | YES |
| OWNERNME2 | Owner Name 2 | NO |
| SITEADDRESS | Site Address | YES |
| BUILDING | Building Number | NO |
| UNIT | Unit | NO |
| PSTLADDRESS | Postal (Mailing) Address | NO |
| PSTLCITY | Postal City | NO |
| PSTLSTATE | Postal State | NO |
| PSTLZIP5 | Postal ZIP | NO |
| USECD | Use Code | NO |
| LOT | Lot | NO |
| SQUARE | Square | NO |
| PARID | Parcel Account ID | YES |
Orleans Parish (New Orleans, pop. 383,000) Property Information layer at index 15 of the apps/property3 composite MapServer. Note: the 'LandBase/Parcels' MapServer at gis.nola.gov only exposes GEOPIN (parcel geometry key, no attributes). For owner + address data, use apps/property3/MapServer/15 which is an assessor join. 20 fields confirmed: OBJECTID, BUILDING, UNIT, SITEADDRESS, OWNERNME1/2, PSTLADDRESS/CITY/STATE/ZIP5/ZIP4, USECD, PRPRTYDSCRP, PARCELID, TAXBILLID, LOT, SQUARE, BLOCK, PARID. New Orleans uses a Square/Lot system (not typical street address) for legal parcel identification. Verified 2026-05-15: SMITH returns New Orleans addresses. The countySlug 'orleans-parish' matches countySlugFromName('Orleans Parish') per atlas slugify rules.
City of New Orleans GIS (NOLA GIS) — https://gis.nola.gov/
/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.