| | Corsicana, TX | Texarkana, TX | United States |
| Population | 24,589 | 36,256 | 329,725,481 |
| Female Population | 49.8% | 51.8% | 50.5% |
| Male Population | 50.2% | 48.2% | 49.5% |
| Median Age | 35.4 | 37.3 | 38.4 |
| space3 | | | |
| Population - 2010 | 23,839 | 36,356 | 309,327,143 |
| Population - 2000 | 24,485 | 34,782 | 285,036,114 |
| Population - 1990 | 22,911 | 31,656 | 251,960,433 |
| Pop. 2000 to Now | -2.8% | 4.1% | 15.6% |
| Pop. 1990 to Now | 3.9% | 14.4% | 30.8% |
| space4 | | | |
| Population Density | 1,090.7 | 1,248.0 | 93.4 |
| Land Area | 22.5 | 29.1 | 3,531,905.4 |
| Water Area | 1.0 | 0.4 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Corsicana, TX | Texarkana, TX | United States |
| Age 0 to 4 | 8.4% | 6.8% | 5.9% |
| Age 5 to 9 | 7.5% | 7.4% | 6.1% |
| Age 10 to 14 | 7.2% | 6.5% | 6.6% |
| Age 15 to 17 | 4.2% | 3.8% | 3.9% |
| Age 18 to 20 | 4.6% | 3.4% | 4.0% |
| Age 21 to 24 | 5.7% | 5.0% | 5.2% |
| Age 25 to 34 | 12.0% | 13.6% | 13.8% |
| Age 35 to 44 | 13.0% | 13.4% | 12.9% |
| Age 45 to 54 | 10.6% | 11.1% | 12.6% |
| Age 55 to 59 | 6.3% | 6.0% | 6.7% |
| Age 60 to 64 | 5.0% | 6.5% | 6.3% |
| Age 65 to 74 | 9.4% | 8.9% | 9.6% |
| Age 75 to 84 | 4.0% | 5.1% | 4.5% |
| Age 85 and over | 2.3% | 2.5% | 1.9% |
| space1 | | | |
| Race | | | |
| | Corsicana, TX | Texarkana, TX | United States |
| White | 40.2% | 47.3% | 59.4% |
| Black | 15.9% | 38.9% | 12.2% |
| Asian | 1.3% | 2.2% | 5.6% |
| Native American | 0.1% | 0.2% | 0.6% |
| Hawaiian, Pacific Islander | 3.3% | 0.0% | 0.2% |
| Other | 0.1% | 0.1% | 0.4% |
| Two or More Races | 3.7% | 2.3% | 3.2% |
| Hispanic | 35.3% | 8.9% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Corsicana, TX | Texarkana, TX | United States |
| Married Population | 47.1% | 43.8% | 49.8% |
| Currently Married | 45.0% | 40.6% | 48.0% |
| Married but Separated | 2.1% | 3.1% | 1.8% |
| Single Population | 52.9% | 56.2% | 50.2% |
| Never Married | 33.3% | 36.0% | 33.8% |
| Divorced | 11.9% | 13.7% | 10.8% |
| Widowed | 7.6% | 6.6% | 5.6% |
| space5 | | | |
| Household Size | 2.92 | 2.47 | 2.60 |
| Households | 8,159 | 14,032 | 124,010,992 |
| Family Households | 5,473 | 8,589 | 80,755,759 |
| Married couple, w/children | 24.0% | 26.0% | 30.5% |
| Married couple, no children | 40.7% | 35.8% | 42.9% |
| Non Family Households | 2,686 | 5,443 | 43,255,233 |
| Single householder, w/children | 22.1% | 21.0% | 15.8% |
| Single householder, no children | 13.2% | 17.2% | 10.8% |