Public ArcGIS MapServer endpoint for Franklin 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.franklincountyohio.gov/hosting/rest/services/ParcelFeatures/Parcel_Features/MapServer/0PARCELIDParcel IDLOWPARCELIDLow Parcel IDOWNERNME1Owner Name (Primary)OWNERNME2Owner Name 2SITEADDRESSSite AddressZIPCDZIP Codecurl -s 'https://gis.franklincountyohio.gov/hosting/rest/services/ParcelFeatures/Parcel_Features/MapServer/0/query?where=UPPER(OWNERNME1)+LIKE+UPPER('%25SMITH%25')&outFields=PARCELID,OWNERNME1,SITEADDRESS,ZIPCD&returnGeometry=false&f=json&resultRecordCount=10'https://gis.franklincountyohio.gov/hosting/rest/services/ParcelFeatures/Parcel_Features/MapServer/0/query?where=UPPER(OWNERNME1)+LIKE+UPPER('%SMITH%')&outFields=PARCELID,OWNERNME1,SITEADDRESS,ZIPCD&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 |
| LOWPARCELID | Low Parcel ID | YES |
| OWNERNME1 | Owner Name (Primary) | YES |
| OWNERNME2 | Owner Name 2 | YES |
| SITEADDRESS | Site Address | YES |
| ZIPCD | ZIP Code | YES |
| CLASSCD | Property Class Code | NO |
| TOTVALUEBASE | Total Base Value | NO |
| SALEDATE | Sale Date | NO |
| SALEPRICE | Sale Price | NO |
Franklin County, Ohio (Columbus metro, pop. 1.35M, county seat Columbus) is the most populous Ohio county. In Ohio, the county Auditor — not the Assessor — is the statutory data custodian for parcel records; the Franklin County Auditor's office publishes this GIS layer. 115+ fields confirmed including OWNERNME1/2/3, SITEADDRESS, PSTLADDRES, PSTLCITYSTZIP, CLASSCD/CLASSDSCRP, NBHDCD, CVTTXCD (tax district code), SCHLTXCD (school district), LNDVALUEBASE, BLDVALUEBASE, TOTVALUEBASE, SALEDATE, SALEPRICE, RESFLRAREA, RESYRBLT, RESSTRTYP, FLOORCOUNT, ROOMS, BATHS, HBATHS, BEDRMS, FIREPLC, AIRCOND, WALL, COND, GRADE, FLOOD, WATERSERV, SEWERSERV, OWNEROCCUPIED, RENTAL. Max record count 3000; owner query tested and confirmed returning real Columbus-area results. Parcel ID format: 'XXX-XXXXXX' (3-digit + 6-digit with hyphen). The service follows the ESRI Local Government Information Model (LGIM) parcel schema. Layer is updated Monday through Friday at 7:00 PM Eastern. Open-data downloads available at auditor-fca.opendata.arcgis.com. The Auditor's parcel viewer at property.franklincountyauditor.com is the browser-facing interface over the same data.
Franklin County Auditor GIS / Franklin County IT — https://data-franklincova.opendata.arcgis.com/
Franklin County's Tax Parcel layer exposes parcel identifiers (Parcel ID, Low Parcel ID), owner names (Owner Name (Primary), Owner Name 2), and address fields (Site Address). Use it for owner-name lookups and address-based parcel searches. 6 of 10 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 2026-05-11.
/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 Franklin 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.