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?
gis.franklincountyohio.gov serves Franklin County, Ohio 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 Franklin County's MapServer layer on 2026-05-11. 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.
Franklin County's layer is hosted by the county on gis.franklincountyohio.gov. Public ArcGIS endpoints rarely rate-limit individual reads, but gis.franklincountyohio.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.