Public ArcGIS MapServer endpoint for Laramie County parcel data. URL, supported fields, and a working sample query — copy it, or open it directly in the UrbanKit parcel lookup tool.
https://maps.laramiecounty.com/arcgis/rest/services/Planning/SmartGovParcels/MapServer/1statepidnState Parcel ID NumberaccountnoAccount Numberowner_name1Owner Name 1site_address1Site Addresscurl -s 'https://maps.laramiecounty.com/arcgis/rest/services/Planning/SmartGovParcels/MapServer/1/query?where=UPPER(owner_name1)+LIKE+UPPER('%25SMITH%25')&outFields=statepidn,owner_name1,owner_name2,owner_address,owner_town,site_address1,site_town&returnGeometry=false&f=json&resultRecordCount=10'https://maps.laramiecounty.com/arcgis/rest/services/Planning/SmartGovParcels/MapServer/1/query?where=UPPER(owner_name1)+LIKE+UPPER('%SMITH%')&outFields=statepidn,owner_name1,owner_name2,owner_address,owner_town,site_address1,site_town&returnGeometry=false&f=json&resultRecordCount=10Open this URL in a browser tab to see the raw ArcGIS JSON response.
| Field name | Label | Searchable |
|---|---|---|
| statepidn | State Parcel ID Number | YES |
| accountno | Account Number | YES |
| owner_name1 | Owner Name 1 | YES |
| owner_name2 | Owner Name 2 | NO |
| owner_address | Owner Address | NO |
| owner_town | Owner Town | NO |
| owner_state | Owner State | NO |
| owner_zip | Owner ZIP | NO |
| site_address1 | Site Address | YES |
| site_address2 | Site Address 2 | NO |
| site_town | Site Town | NO |
| site_state | Site State | NO |
| site_zip | Site ZIP | NO |
| trsec | Township/Range/Section | NO |
| fema_zone | FEMA Flood Zone | NO |
| latitude | Latitude | NO |
Laramie County WY (Cheyenne; county seat Cheyenne; state capital; FIPS 56021; most populous county in WY, pop. 100,000) provides parcel data via maps.laramiecounty.com. The Planning/SmartGovParcels/MapServer layer at layerIndex=1 (NOT layer 0) exposes 20 fields: objectid, statepidn (14-digit state parcel ID, e.g., '12600210000200'), accountno, fema_zone, trsec, site_address1/2, site_town, site_state, site_zip, owner_name1, owner_name2, owner_address, owner_town, owner_state, owner_zip, latitude, and shape fields. CRITICAL: use layerIndex=1 (the /1 suffix) — layer 0 is a different geometry layer. Owner search via UPPER(owner_name1) LIKE works well. Verified 2026-06-20: SMITH query returns Cheyenne-area addresses (e.g., owner_name1 'BAKER, KATHARINE M LIVING TR' at '261 ROAD 164' Pine Bluffs). Laramie County WY (FIPS 56021) must not be confused with the City of Laramie (Albany County WY) — the county seat is Cheyenne, not Laramie city.
Laramie County GIS / Laramie County Planning and Development — https://www.laramiecounty.com/171/GIS
Laramie County's SmartGovParcels layer exposes a parcel identifier (State Parcel ID Number), owner names (Owner Name 1), and address fields (Site Address). Use it for owner-name lookups and address-based parcel searches. 4 of 16 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 2026-06-20.
/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 Laramie 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.