Public ArcGIS MapServer endpoint for Mahoning County parcel data. URL, supported fields, and a working sample query, copy it, or open it directly in the UrbanKit parcel lookup tool.
This page is the endpoint reference. If you came here to find a specific property, the Mahoning County parcel search runs this same layer in your browser, no account and no API key.
Search Mahoning County parcelsHave a street address but not the parcel number? Find the parcel number by address.
https://gisapp.mahoningcountyoh.gov/arcgis/rest/services/PUBLIC_WEBSITE_CADASTRAL/MapServer/2Field by field, whether any endpoint we index for Mahoning County answers it, and the evidence for each. We only call a field restricted when there is a stated reason we can cite. Everything else here is a fact about the services we index, not a claim about the law.
| Field | Status | Basis |
|---|---|---|
| APN | Answered | Documented in a field list on an endpoint we index. Not every row is populated. |
| Owner name | Answered | Documented in a field list on an endpoint we index. Not every row is populated. |
| Owner mailing address | Answered | Documented in a field list on an endpoint we index. Not every row is populated. |
| Site address | Answered | Documented in a field list on an endpoint we index. Not every row is populated. |
| Geometry | Answered | Documented in a field list on an endpoint we index. Not every row is populated. |
| Land use | Answered | Documented in a field list on an endpoint we index. Not every row is populated. |
| Zoning | Not published | No endpoint we index for this county documents this field, so a query cannot ask for it. That is a fact about the services we index, not a legal restriction, and not a statement that the county holds no such record. Where to request it. |
PARCEL_IDParcel IDOWNNAME1Owner Name 1OWNNAME2Owner Name 2MVP_ADDRESSSite AddressLOCSTREETSite Street NameLOCCITYSite CityLOCZIPSite ZIPMAIL_ADDRESSOwner Mailing AddressMAILCITYOwner Mailing Citycurl -s 'https://gisapp.mahoningcountyoh.gov/arcgis/rest/services/PUBLIC_WEBSITE_CADASTRAL/MapServer/2/query?where=UPPER(OWNNAME1)%20LIKE%20UPPER('%25SMITH%25')&outFields=*&returnGeometry=false&f=json&resultRecordCount=10'https://gisapp.mahoningcountyoh.gov/arcgis/rest/services/PUBLIC_WEBSITE_CADASTRAL/MapServer/2/query?where=UPPER(OWNNAME1) LIKE UPPER('%SMITH%')&outFields=*&returnGeometry=false&f=json&resultRecordCount=10Open this URL in a browser tab to see the raw ArcGIS JSON response.
| Field name | Label | Searchable |
|---|---|---|
| PARCEL_ID | Parcel ID | YES |
| OWNNAME1 | Owner Name 1 | YES |
| OWNNAME2 | Owner Name 2 | YES |
| MVP_ADDRESS | Site Address | YES |
| LOCSTREET | Site Street Name | YES |
| LOCCITY | Site City | YES |
| LOCZIP | Site ZIP | YES |
| MAIL_ADDRESS | Owner Mailing Address | YES |
| MAILCITY | Owner Mailing City | YES |
| MAILSTATE | Owner Mailing State | NO |
| MAILZIP | Owner Mailing ZIP | NO |
| LANDUSE | Land Use Code | NO |
| ACRES | Acres | NO |
Mahoning County (county seat Youngstown) publishes its parcels as layer 2 'PROPERTY BOUNDARIES' of the PUBLIC_WEBSITE_CADASTRAL MapServer on its own ArcGIS Server. The layer carries PARCEL_ID, owner names OWNNAME1 to OWNNAME3, the site address (MVP_ADDRESS combined, LOC* components), the owner mailing address (MAIL_ADDRESS combined, MAIL* components), a separate tax-bill mailing block (TAX*), land use, market values and the last sale. SERVER QUIRK: any query that names specific outFields fails with HTTP 400 'Failed to execute query.', and only outFields=* succeeds, so a client must request every field and pick columns out of the response. Measured across seven request variants on 2026-09-25 and confirmed again on 2026-09-26. CORS reflects the request's Origin. Re-verified 2026-09-26: the layer holds 160,722 parcels and an owner-name query returned live rows. The county's GIS page describes its maps as informational only and not suitable for legal, engineering or surveying use; no open-data license is stated.
Mahoning County GIS, https://www.mahoningcountyoh.gov/161/GIS
Mahoning County's PROPERTY BOUNDARIES layer exposes a parcel identifier (Parcel ID), owner names (Owner Name 1, Owner Name 2, Owner Mailing Address, Owner Mailing City), and address fields (Site Address, Site Street Name, Site City, Site ZIP). Use it for owner-name lookups and address-based parcel searches. 9 of 13 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 2026-09-26.
/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 Mahoning County actually publishes, not what you might expect from a national standard (there isn't one).
For background, see What is an APN?
gisapp.mahoningcountyoh.gov serves Mahoning 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 Mahoning County's MapServer layer on 2026-09-26. 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.
Mahoning County's layer is hosted by the county on gisapp.mahoningcountyoh.gov. Public ArcGIS endpoints rarely rate-limit individual reads, but gisapp.mahoningcountyoh.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.