| County: | Delta County |
| State: | Texas |
| Founded: | 1870 |
| Seat Wl: | Cooper |
| Largest City: | Cooper |
| Area Total Sq Mi: | 278 |
| Area Land Sq Mi: | 257 |
| Area Water Sq Mi: | 21 |
| Area Percentage: | 7.6 |
| Census Yr: | 2020 |
| Pop: | 5230 |
| Density Sq Mi: | auto |
| Ex Image: | Cooper October 2015 1 (Delta County Courthouse).jpg |
| Ex Image Size: | 250 |
| Ex Image Cap: | Delta County Courthouse in Cooper |
| Web: | www.deltacountytx.com |
| Time Zone: | Central |
| District: | 4th |
Delta County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 5,230.[1] Its county seat and largest city is Cooper.[2] The county was founded in 1870 and is named for its triangular shape,[3] which resembles the Greek letter delta.
Meanders of two forks of the Sulphur River formed its northern and southern boundaries and meet at its easternmost point. Delta County was one of 19[4] prohibition, or entirely dry, counties in the state of Texas., Delta County is no longer a dry county.
According to the U.S. Census Bureau, the county has a total area of 278sqmi, of which 257sqmi are land and 21sqmi (7.6%) are covered by water.[5]
| White alone (NH) | 4,351 | 4,189 | 83.18% | 80.10% | |
| Black or African American alone (NH) | 375 | 312 | 7.17% | 5.97% | |
| Native American or Alaska Native alone (NH) | 59 | 42 | 1.13% | 0.80% | |
| Asian alone (NH) | 30 | 37 | 0.57% | 0.71% | |
| Pacific Islander alone (NH) | 0 | 5 | 0.00% | 0.10% | |
| Some Other Race alone (NH) | 11 | 30 | 0.21% | 0.57% | |
| Mixed Race/Multi-Racial (NH) | 117 | 221 | 2.24% | 4.23% | |
| Hispanic or Latino (any race) | 288 | 394 | 5.51% | 7.53% | |
| Total | 5,231 | 5,230 | 100.00% | 100.00% |
The 2020 U.S. census determined that Delta County had a population of 5,320. Among its population, the racial and ethnic makeup was 80.10% non-Hispanic white, 5.97% African American, 0.80% Native American, 0.71% Asian, 0.10% Pacific Islander, 0.57% some other race, 4.23% multiracial, and 7.53% Hispanic or Latino of any race.
Delta County is represented in the Texas House of Representatives by Republican Larry Phillips of Sherman, Texas.