Wyoming · FIPS 56011 · County seat: Sundance
Crook County, WY GIS & Parcel Viewer
Parcel lookups for Crook County start at the Crook County ArcGIS parcel map. This page gives you that official link, notes on how the viewer works, and links to the counties next door.
Open the Crook County parcel map ↗
Opens experience.arcgis.com in a new tab. We link out and never embed or copy parcel data.
Crook County at a glance
| Official map | Crook County ArcGIS parcel map |
|---|---|
| Type | County-run map |
| Website | experience.arcgis.com |
| Access | Free, no login (checked Oct 2026) |
| County seat | Sundance |
| Population | 7,592 (2023 Census Bureau estimate) |
| Land area | 2,854 sq mi |
| FIPS code | 56011 |
Who runs this map
This map is published by or for Crook County itself, so it reflects the local parcel layer rather than a third-party copy. As of our October 2026 test, anyone could open it without signing in or paying.
How to use the Crook County viewer
- Open the link. This viewer is an ArcGIS Experience Builder app, so its layout is custom to the publisher.
- Look for a search box or search widget and type in a street address or parcel ID.
- Click a parcel to see its details in a pop-up or side panel.
- Check the toolbar for a layer list or basemap switcher if you want aerials or other layers.
If an address search comes up empty, try the parcel number from a tax bill or deed instead, or click the lot on the map.
The county in brief
Crook County had an estimated 7,592 residents in 2023, according to the Census Bureau. With about 2,854 square miles of land, that works out to roughly 2.7 people per square mile. Among Wyoming's 23 counties, it is the 20th largest by population. Sundance serves as the county seat.
Counties next to Crook County
Crook County shares a border with the counties below. Each link has its own official map:
- Campbell County
- Weston County
- Butte County, SD
- Carter County, MT
- Lawrence County, SD
- Powder River County, MT
A note on accuracy
Online parcel lines are drawn for tax and planning use. They can be off by several feet, so use a recorded plat or a licensed surveyor for fences, setbacks or a sale.