Public ArcGIS FeatureServer endpoint for Johnson 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.johnsoncountyiowa.gov/arcgis/rest/services/Parcels_AddressPoints_Roads_IC/FeatureServer/2PPNParcel Permanent NumberDeedHolder1Deed Holder 1 (Owner)DeedHolder2Deed Holder 2DeedHolder3Deed Holder 3MailingNameMailing NameMailingAddress1Mailing AddressContractOwner1Contract Owner 1curl -s 'https://gis.johnsoncountyiowa.gov/arcgis/rest/services/Parcels_AddressPoints_Roads_IC/FeatureServer/2/query?where=UPPER(DeedHolder1)%20LIKE%20UPPER('%25SMITH%25')&outFields=PPN,DeedHolder1,MailingName,MailingAddress1&returnGeometry=false&f=json&resultRecordCount=10'https://gis.johnsoncountyiowa.gov/arcgis/rest/services/Parcels_AddressPoints_Roads_IC/FeatureServer/2/query?where=UPPER(DeedHolder1) LIKE UPPER('%SMITH%')&outFields=PPN,DeedHolder1,MailingName,MailingAddress1&returnGeometry=false&f=json&resultRecordCount=10Open this URL in a browser tab to see the raw ArcGIS JSON response.
| Field name | Label | Searchable |
|---|---|---|
| PPN | Parcel Permanent Number | YES |
| DeedHolder1 | Deed Holder 1 (Owner) | YES |
| DeedHolder2 | Deed Holder 2 | YES |
| DeedHolder3 | Deed Holder 3 | YES |
| MailingName | Mailing Name | YES |
| MailingAddress1 | Mailing Address | YES |
| MailingZipCode | Mailing ZIP Code | NO |
| ContractOwner1 | Contract Owner 1 | YES |
| CityTownship | City/Township | NO |
Johnson County IA (Iowa City metro, University of Iowa, county seat Iowa City) hosts Parcels_AddressPoints_Roads_IC/FeatureServer with 3 layers; layer 2 (Parcels_Auditor_Year) is the polygon parcel layer joined to Auditor data. Fields include PPN, FeaType, Dist, Districtname, AreaSchool, CityTownShipAbbrev, SchoolAbbrev, CityTownship, School, AlternateID, MailingName, MailingAddress1/2/3, MailingZipCode, Section, Township, Range, SubDivision, Block, LegalDescription, DeedHolder1/2/3, ContractOwner1/2/3/4. Query confirmed live: UPPER(DeedHolder1) LIKE '%SMITH%' returns real results (e.g., 'JEAN E MANASMITH REVOCABLE TRUST' with MailingName='JEAN E MANASMITH'). Layer 0 is Site_Addresses (address points), layer 1 is Road Centerlines. Johnson County IA (FIPS 19103) must not be confused with Johnson County KS (20091), Johnson County IN (18081), or Johnson County TX (48251). The Property Information Viewer at gis.johnsoncountyiowa.gov/piv/ provides the public map interface.
Johnson County Iowa Department of Geographic Information Systems, https://www.johnsoncountyiowa.gov/department-of-geographic-information-systems
Johnson County's Parcels_Auditor_Year layer exposes owner names (Deed Holder 1 (Owner), Deed Holder 2, Deed Holder 3, Contract Owner 1) and address fields (Mailing Address). Use it for owner-name lookups and address-based parcel searches. 7 of 9 listed fields accept queries; the rest are returned on read but not indexed for search. Served as an ArcGIS FeatureServer layer, so edits and applyEdits operations are technically exposed (read access only is published here); last verified 2026-05-15.
/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 Johnson County actually publishes, not what you might expect from a national standard (there isn't one).
For background, see What is an APN?
gis.johnsoncountyiowa.gov serves Johnson County, Iowa 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 Johnson County's FeatureServer layer on 2026-05-15. 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.
Johnson County's layer is hosted by the county on gis.johnsoncountyiowa.gov. Public ArcGIS endpoints rarely rate-limit individual reads, but gis.johnsoncountyiowa.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.