| | Beeville, TX | Three Rivers, TX | United States |
| Population | 13,780 | 1,598 | 329,725,481 |
| Female Population | 51.7% | 55.4% | 50.5% |
| Male Population | 48.4% | 44.6% | 49.5% |
| Median Age | 27.9 | 39.4 | 38.4 |
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| Population - 2010 | 14,205 | 1,803 | 309,327,143 |
| Population - 2000 | 13,129 | 1,878 | 285,036,114 |
| Population - 1990 | 13,547 | 1,889 | 251,960,433 |
| Pop. 2000 to Now | 7.9% | 3.2% | 15.6% |
| Pop. 1990 to Now | 4.6% | 2.6% | 30.8% |
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| Population Density | 2,232.3 | 1,092.3 | 93.4 |
| Land Area | 6.2 | 1.5 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Beeville, TX | Three Rivers, TX | United States |
| Age 0 to 4 | 7.9% | 11.0% | 5.9% |
| Age 5 to 9 | 9.2% | 4.4% | 6.1% |
| Age 10 to 14 | 9.2% | 5.5% | 6.6% |
| Age 15 to 17 | 3.8% | 6.1% | 3.9% |
| Age 18 to 20 | 5.6% | 4.8% | 4.0% |
| Age 21 to 24 | 7.3% | 2.8% | 5.2% |
| Age 25 to 34 | 16.5% | 8.5% | 13.8% |
| Age 35 to 44 | 10.8% | 12.9% | 12.9% |
| Age 45 to 54 | 7.6% | 4.9% | 12.6% |
| Age 55 to 59 | 4.1% | 9.9% | 6.7% |
| Age 60 to 64 | 5.3% | 10.1% | 6.3% |
| Age 65 to 74 | 7.6% | 11.3% | 9.6% |
| Age 75 to 84 | 3.7% | 6.1% | 4.5% |
| Age 85 and over | 1.4% | 1.8% | 1.9% |
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| Race | | | |
| | Beeville, TX | Three Rivers, TX | United States |
| White | 23.5% | 35.9% | 59.4% |
| Black | 1.8% | 0.0% | 12.2% |
| Asian | 0.3% | 0.0% | 5.6% |
| Native American | 0.6% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.1% | 0.0% | 0.4% |
| Two or More Races | 0.3% | 1.3% | 3.2% |
| Hispanic | 73.4% | 62.8% | 18.4% |
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| Marriage & Family | | | |
| | Beeville, TX | Three Rivers, TX | United States |
| Married Population | 41.2% | 54.3% | 49.8% |
| Currently Married | 38.6% | 53.1% | 48.0% |
| Married but Separated | 2.6% | 1.2% | 1.8% |
| Single Population | 58.8% | 45.7% | 50.2% |
| Never Married | 39.8% | 29.0% | 33.8% |
| Divorced | 13.4% | 8.5% | 10.8% |
| Widowed | 5.6% | 8.1% | 5.6% |
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| Household Size | 2.77 | 2.35 | 2.60 |
| Households | 4,880 | 681 | 124,010,992 |
| Family Households | 3,027 | 422 | 80,755,759 |
| Married couple, w/children | 37.6% | 23.7% | 30.5% |
| Married couple, no children | 24.5% | 51.7% | 42.9% |
| Non Family Households | 1,853 | 259 | 43,255,233 |
| Single householder, w/children | 24.6% | 22.3% | 15.8% |
| Single householder, no children | 13.3% | 2.4% | 10.8% |