THE HARTLEY COUNTY LAND BRIEF
Land in the
Rolling Sand Plains setting.
Hartley County has 1,462 square miles of land in Texas. 3 mapped landscape regions meet across Hartley County: Rolling Sand Plains, Canadian/Cimarron High Plains, Semiarid Canadian Breaks.
Broad, comparatively smooth plains distinguish the High Plains from neighboring broken terrain. The natural grassland setting is drier and higher than the Central Great Plains to the east.
Regional context: High Plains ↗ · Regional mapping across the county footprint
Where the landscape changes
Hartley County intersects 3 mapped regional units. The largest mapped shares are:
- Rolling Sand Plains39.2%
- Canadian/Cimarron High Plains33%
- Semiarid Canadian Breaks27.7%
Southwestern Tablelands in Hartley County
Canyons, mesas, badlands and river breaks border the High Plains. This more dissected country includes grassland and shrub-covered slopes, with sharper terrain changes than the neighboring plains.
Read the regional source ↗Finding your parcel within Hartley County
The atlas lists 3 cities, towns, townships, and Census communities associated with Hartley County, including Hartley, Dalhart, Channing. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Hartley County by land and water
The Census records 1.16 square miles of water within Hartley County, or 0.1% of its total area. That share is close to Hartley County’s 0.1%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Hartley County has 209.8 times the land area of nearby Hartley CDP (6.97 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Dallam County, Moore County, Oldham County, Sherman County within Texas. A tract near one of these lines should be matched to the county identifier on its own records.

