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?
maps.laramiecounty.com serves Laramie County, Wyoming 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 Laramie County's MapServer layer on 2026-06-20. 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.
Laramie County's layer is hosted by the county on maps.laramiecounty.com. Public ArcGIS endpoints rarely rate-limit individual reads, but maps.laramiecounty.com 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.