Public ArcGIS MapServer endpoint for Marion County parcel data. URL, supported fields, and a working sample query — copy it, or open it directly in the UrbanKit parcel lookup tool.
https://xmaps.indy.gov/arcgis/rest/services/Basemaps/IndyBase_Topographic/MapServer/54/query?where=UPPER(FULL_STNAME)+LIKE+UPPER('%MAIN%')&outFields=PARCEL_TAG,STNUMBER,FULL_STNAME,CITY,ZIPCODE&returnGeometry=false&f=json&resultRecordCount=10Open this URL in a browser tab to see the raw ArcGIS JSON response.
| Field name | Label | Searchable |
|---|---|---|
| PARCEL_TAG | Parcel Tag (internal ID) | YES |
| PARCEL_I | Parcel I (identifier) | YES |
| PARCEL_C | Parcel C (identifier) | YES |
| STNUMBER | Street Number | YES |
| FULL_STNAME | Full Street Name | YES |
| CITY | City | YES |
| COUNTY | County | NO |
| ZIPCODE | ZIP Code | YES |
| ESTSQFT | Estimated Square Footage | NO |
| TOWNSHIP | Township | NO |
25 fields confirmed: OBJECTID, PARCEL_TAG, PARCEL_I, PARCEL_C, LOTNUM, SUBDIVISION_TAG, SUBDIVNUM, STNUMBER, PRE_DIR, STREET_NAME, SUFFIX, SUF_DIR, FULL_STNAME, CITY, COUNTY, STATE, TOWNSHIP, ZIPCODE, ESTSQFT, BLOCK, MODDATE, STATUS. NOTE: Owner name and mailing address are NOT exposed on this public REST endpoint. This is a geometry + address layer used for the public basemap. Owner data is in the IndyGIS Assessor Property Cards application at maps.indy.gov/AssessorPropertyCards/ (browser-based, no public REST). Marion County is a consolidated city-county (Indianapolis); same parcel layer is also at xmaps.indy.gov/arcgis/rest/services/Accela/AGIS_INDIANAPOLIS/MapServer/15 under the name 'Parcels'. Address query returns real Indianapolis streets and city names.
IndyGIS — City of Indianapolis / Marion County Information Services — https://maps.indy.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.