THE OLDHAM COUNTY LAND BRIEF
Land in the
Semiarid Canadian Breaks setting.
Oldham County has 1,500.5 square miles of land in Texas. 3 mapped landscape regions meet across Oldham County: Semiarid Canadian Breaks, Llano Estacado, Rolling Sand Plains.
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.
Regional context: Southwestern Tablelands ↗ · Regional mapping across the county footprint
Where the landscape changes
Oldham County intersects 3 mapped regional units. The largest mapped shares are:
- Semiarid Canadian Breaks78.8%
- Llano Estacado17.7%
- Rolling Sand Plains3.5%
High Plains in Oldham County
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.
Read the regional source ↗Finding your parcel within Oldham County
The atlas lists 4 cities, towns, townships, and Census communities associated with Oldham County, including Wildorado, Boys Ranch, Vega. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Oldham County by land and water
The Census records 0.9 square miles of water within Oldham County, or 0.1% of its total area. That share is close to Oldham County’s 0.1%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Oldham County has 3,192.6 times the land area of nearby Adrian city (0.47 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Deaf Smith County, Hartley County, Moore County, Potter County, Randall County within Texas. A tract near one of these lines should be matched to the county identifier on its own records.

