Dallam County, Texas
Dallam County sits at the northernmost edge of the Texas Panhandle, bordering both Oklahoma and New Mexico. Dalhart, the county’s largest community, is closely connected to the history of the famous XIT Ranch and remains the center of local life.
The county is defined by vast open spaces, expansive skies, and a strong agricultural tradition. Farming and ranching are major parts of the local economy, reflecting the region’s long-standing connection to the land.
Outdoor enthusiasts can explore the Rita Blanca National Grasslands, which offer opportunities for hiking, wildlife viewing, and enjoying the peaceful prairie landscape. Birdwatchers are especially drawn to the area for the chance to spot prairie chickens and other native species.
| Category | Details |
|---|---|
| County Name | Dallam County |
| County Seat | Dalhart |
| Population | Approximately 7,500 |
| Cities, Towns, and Communities | Dalhart, Texline |
| Interstates and Highways | U.S. Highway 54, U.S. Highway 87 |
| FIPS Code | 48-111 |
| Total Area (Land and Water) | 1,505 square miles (1,503 sq mi land, 2 sq mi water) |
| Adjacent Counties (and Direction) | Cimarron County, Oklahoma (North), Sherman County (East), Moore County (Southeast), Hartley County (South), Union County, New Mexico (West) |
| Time Zone | Central Time Zone (CST) |
| State | Texas |
| Coordinates | 36°16’N, 102°36’W |
| Etymology | Named after James Wilmer Dallam, a lawyer and author with the Supreme Court of Texas |
| Major Landmarks | Rita Blanca Lake, XIT Museum, Lake Rita Blanca State Park |
