Public ArcGIS MapServer endpoint for Shawnee 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.sncoapps.us/arcgis2/rest/services/Appraiser/AppraisalDataPro/MapServer/4/query?where=UPPER(ONAME) LIKE UPPER('%SMITH%')&outFields=PARCELNUM,ONAME,PADDRESS&returnGeometry=false&f=json&resultRecordCount=10Open this URL in a browser tab to see the raw ArcGIS JSON response.
| Field name | Label | Searchable |
|---|---|---|
| PARCELNUM | Parcel Number | YES |
| PID | Parcel ID | YES |
| QUICKREFID | Quick Reference ID | YES |
| ONAME | Owner Name | YES |
| PADDRESS | Property Address | YES |
| PADDRESS2 | Property Address 2 | YES |
| TAXUNIT | Tax Unit | NO |
Shawnee County KS (Topeka metro, county seat and state capital Topeka) provides AppraisalDataPro/MapServer/4 (Current Parcels) via the county appraiser's GIS server. This is a 20-field service: OBJECTID, PARCELNUM, ACRES, PID, QUICKREFID, ONAME (owner name), PADDRESS, PADDRESS2, DBOOKPAGE, SUBS (subdivision), NBHD (neighborhood), TAXUNIT, USD (unified school district), LBCSFUNCTION, LBCSACTIVITY, LDVAL, BLDGVAL, TOTVAL, Shape, Shape area. Query confirmed live: UPPER(ONAME) LIKE '%SMITH%' returns real results (e.g., 'SMITH, NEIL K & JONI' on SE 105TH ST). The same service has layer 0 (Parcel Information with Labels), layer 3 (Parcels 1-1-2024 — prior year snapshot), and layer 4 (Current Parcels). The Shawnee County Open Data Portal at data-sncoks-gis.opendata.arcgis.com provides additional datasets. The property search app is at gis.sncoapps.us/propertysearch/. Shawnee County KS (FIPS 20177) must not be confused with Shawnee County Ohio or Shawnee Township.
Shawnee County Appraiser's Office GIS — https://snco.gov/ap/mapping.php
/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.