| | El Campo, TX | McLoud, OK | United States |
| Population | 12,280 | 4,223 | 329,725,481 |
| Female Population | 52.1% | 66.9% | 50.5% |
| Male Population | 48.0% | 33.1% | 49.5% |
| Median Age | 33.9 | 41.3 | 38.4 |
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| Population - 2010 | 11,687 | 4,526 | 309,327,143 |
| Population - 2000 | 10,945 | 3,548 | 285,036,114 |
| Population - 1990 | 10,511 | 2,493 | 251,960,433 |
| Pop. 2000 to Now | 5.1% | 35.3% | 15.6% |
| Pop. 1990 to Now | 9.4% | 92.5% | 30.8% |
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| Population Density | 1,266.2 | 222.9 | 93.4 |
| Land Area | 9.7 | 18.9 | 3,531,905.4 |
| Water Area | 0.0 | 0.1 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | El Campo, TX | McLoud, OK | United States |
| Age 0 to 4 | 8.4% | 4.2% | 5.9% |
| Age 5 to 9 | 9.4% | 6.3% | 6.1% |
| Age 10 to 14 | 8.3% | 3.8% | 6.6% |
| Age 15 to 17 | 5.3% | 2.3% | 3.9% |
| Age 18 to 20 | 4.6% | 2.7% | 4.0% |
| Age 21 to 24 | 4.9% | 3.2% | 5.2% |
| Age 25 to 34 | 10.6% | 14.9% | 13.8% |
| Age 35 to 44 | 13.8% | 19.1% | 12.9% |
| Age 45 to 54 | 10.4% | 20.9% | 12.6% |
| Age 55 to 59 | 4.9% | 9.0% | 6.7% |
| Age 60 to 64 | 4.4% | 3.3% | 6.3% |
| Age 65 to 74 | 8.1% | 6.1% | 9.6% |
| Age 75 to 84 | 3.7% | 3.2% | 4.5% |
| Age 85 and over | 3.1% | 1.2% | 1.9% |
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| Race | | | |
| | El Campo, TX | McLoud, OK | United States |
| White | 41.4% | 64.2% | 59.4% |
| Black | 8.0% | 5.4% | 12.2% |
| Asian | 0.0% | 1.9% | 5.6% |
| Native American | 0.0% | 17.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.1% | 0.0% | 0.4% |
| Two or More Races | 0.3% | 8.7% | 3.2% |
| Hispanic | 50.2% | 2.6% | 18.4% |
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| Marriage & Family | | | |
| | El Campo, TX | McLoud, OK | United States |
| Married Population | 52.2% | 52.7% | 49.8% |
| Currently Married | 49.6% | 47.3% | 48.0% |
| Married but Separated | 2.6% | 5.4% | 1.8% |
| Single Population | 47.8% | 47.3% | 50.2% |
| Never Married | 30.8% | 25.9% | 33.8% |
| Divorced | 10.1% | 13.0% | 10.8% |
| Widowed | 6.9% | 8.4% | 5.6% |
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| Household Size | 2.83 | 2.65 | 2.60 |
| Households | 4,306 | 1,149 | 124,010,992 |
| Family Households | 3,156 | 904 | 80,755,759 |
| Married couple, w/children | 36.4% | 26.0% | 30.5% |
| Married couple, no children | 27.8% | 51.4% | 42.9% |
| Non Family Households | 1,150 | 245 | 43,255,233 |
| Single householder, w/children | 24.8% | 15.0% | 15.8% |
| Single householder, no children | 11.0% | 7.5% | 10.8% |