Wyoming · FIPS 56027 · County seat: Lusk
Niobrara County, WY GIS & Parcel Viewer
Niobrara County, Wyoming parcel data lives on Niobrara Assessor. Open it below in a new tab, then use the short steps on this page to find a property fast.
Open the Niobrara County parcel map ↗
Opens crookgrowdev.maps.arcgis.com in a new tab. We link out and never embed or copy parcel data.
Niobrara County at a glance
| Official map | Niobrara Assessor |
|---|---|
| Type | County-run map |
| Website | crookgrowdev.maps.arcgis.com |
| Access | Free, no login (checked Oct 2026) |
| County seat | Lusk |
| Population | 2,354 (2023 Census Bureau estimate) |
| Land area | 2,626 sq mi |
| FIPS code | 56027 |
Where the parcel data comes from
Niobrara County runs this viewer (directly or through a contracted vendor), which makes it the closest thing to the source for local parcel lines. When we tested the link in October 2026 it opened with no login and no fee.
How to use the Niobrara County viewer
- Open the official link. The viewer is built with ArcGIS Web AppBuilder; if a disclaimer pops up, accept it to continue.
- Use the search widget, usually in the upper left, to find a street address or parcel ID.
- Click a parcel to open its info window.
- The widget bar holds extras such as the layer list, basemap switcher, measure and print tools.
Many parcel sites expect owner names last name first. If a full name finds nothing, try just the surname.
About Niobrara County
Niobrara County had an estimated 2,354 residents in 2023, according to the Census Bureau. With about 2,626 square miles of land, that works out to roughly 0.9 people per square mile. That makes it the least populous of Wyoming's 23 counties. Its county seat is Lusk.
Nearby parcel maps
Parcels close to the edge of Niobrara County can fall in the next county over. Neighboring counties:
- Converse County
- Goshen County
- Platte County
- Weston County
- Custer County, SD
- Fall River County, SD
- Sioux County, NE
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.