| | Brazos Country, TX | Wharton, TX | United States |
| Population | 563 | 8,595 | 329,725,481 |
| Female Population | 53.8% | 50.6% | 50.5% |
| Male Population | 46.2% | 49.4% | 49.5% |
| Median Age | 51.9 | 35.3 | 38.4 |
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| Population - 2010 | 468 | 8,866 | 309,327,143 |
| Population - 2000 | 205 | 9,237 | 285,036,114 |
| Population - 1990 | 169 | 9,011 | 251,960,433 |
| Pop. 2000 to Now | 130.2% | -6.7% | 15.6% |
| Pop. 1990 to Now | 179.3% | -4.4% | 30.8% |
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| Population Density | 271.7 | 1,148.3 | 93.4 |
| Land Area | 2.1 | 7.5 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Brazos Country, TX | Wharton, TX | United States |
| Age 0 to 4 | 1.6% | 7.8% | 5.9% |
| Age 5 to 9 | 3.0% | 5.5% | 6.1% |
| Age 10 to 14 | 3.6% | 6.5% | 6.6% |
| Age 15 to 17 | 3.6% | 3.0% | 3.9% |
| Age 18 to 20 | 9.6% | 5.6% | 4.0% |
| Age 21 to 24 | 5.2% | 8.2% | 5.2% |
| Age 25 to 34 | 4.8% | 12.7% | 13.8% |
| Age 35 to 44 | 2.5% | 14.0% | 12.9% |
| Age 45 to 54 | 26.6% | 9.6% | 12.6% |
| Age 55 to 59 | 12.6% | 4.8% | 6.7% |
| Age 60 to 64 | 8.2% | 4.8% | 6.3% |
| Age 65 to 74 | 12.6% | 7.5% | 9.6% |
| Age 75 to 84 | 4.3% | 5.7% | 4.5% |
| Age 85 and over | 2.0% | 4.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Brazos Country, TX | Wharton, TX | United States |
| White | 95.6% | 28.0% | 59.4% |
| Black | 1.1% | 26.7% | 12.2% |
| Asian | 0.0% | 0.5% | 5.6% |
| Native American | 0.0% | 0.2% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.1% | 0.4% |
| Two or More Races | 0.2% | 3.5% | 3.2% |
| Hispanic | 3.2% | 41.0% | 18.4% |
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| Marriage & Family | | | |
| | Brazos Country, TX | Wharton, TX | United States |
| Married Population | 68.9% | 36.0% | 49.8% |
| Currently Married | 67.9% | 34.3% | 48.0% |
| Married but Separated | 1.0% | 1.7% | 1.8% |
| Single Population | 31.1% | 64.0% | 50.2% |
| Never Married | 25.1% | 41.3% | 33.8% |
| Divorced | 2.7% | 14.7% | 10.8% |
| Widowed | 3.3% | 8.1% | 5.6% |
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| Household Size | 2.67 | 2.58 | 2.60 |
| Households | 211 | 3,212 | 124,010,992 |
| Family Households | 183 | 1,849 | 80,755,759 |
| Married couple, w/children | 26.8% | 20.6% | 30.5% |
| Married couple, no children | 66.7% | 29.8% | 42.9% |
| Non Family Households | 28 | 1,363 | 43,255,233 |
| Single householder, w/children | 3.3% | 29.5% | 15.8% |
| Single householder, no children | 3.3% | 20.1% | 10.8% |