| | Junction, TX | Brady, TX | United States |
| Population | 2,591 | 5,129 | 329,725,481 |
| Female Population | 52.8% | 48.9% | 50.5% |
| Male Population | 47.2% | 51.1% | 49.5% |
| Median Age | 38.5 | 38.2 | 38.4 |
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| Population - 2010 | 2,570 | 5,503 | 309,327,143 |
| Population - 2000 | 2,618 | 5,523 | 285,036,114 |
| Population - 1990 | 2,654 | 5,946 | 251,960,433 |
| Pop. 2000 to Now | -7.0% | -6.3% | 15.6% |
| Pop. 1990 to Now | -8.3% | -12.9% | 30.8% |
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| Population Density | 1,129.5 | 585.6 | 93.4 |
| Land Area | 2.3 | 8.8 | 3,531,905.4 |
| Water Area | 0.0 | 2.5 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Junction, TX | Brady, TX | United States |
| Age 0 to 4 | 6.9% | 6.4% | 5.9% |
| Age 5 to 9 | 4.9% | 7.5% | 6.1% |
| Age 10 to 14 | 6.5% | 5.1% | 6.6% |
| Age 15 to 17 | 5.3% | 4.7% | 3.9% |
| Age 18 to 20 | 6.8% | 2.1% | 4.0% |
| Age 21 to 24 | 3.9% | 6.4% | 5.2% |
| Age 25 to 34 | 12.1% | 15.0% | 13.8% |
| Age 35 to 44 | 15.8% | 8.1% | 12.9% |
| Age 45 to 54 | 12.6% | 12.5% | 12.6% |
| Age 55 to 59 | 2.2% | 4.8% | 6.7% |
| Age 60 to 64 | 5.2% | 7.2% | 6.3% |
| Age 65 to 74 | 11.3% | 11.5% | 9.6% |
| Age 75 to 84 | 5.6% | 5.2% | 4.5% |
| Age 85 and over | 0.8% | 3.5% | 1.9% |
| space1 | | | |
| Race | | | |
| | Junction, TX | Brady, TX | United States |
| White | 56.6% | 51.8% | 59.4% |
| Black | 1.6% | 1.5% | 12.2% |
| Asian | 0.0% | 1.4% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.2% | 3.3% | 3.2% |
| Hispanic | 40.6% | 42.0% | 18.4% |
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| Marriage & Family | | | |
| | Junction, TX | Brady, TX | United States |
| Married Population | 50.2% | 37.9% | 49.8% |
| Currently Married | 49.5% | 35.6% | 48.0% |
| Married but Separated | 0.7% | 2.4% | 1.8% |
| Single Population | 49.8% | 62.1% | 50.2% |
| Never Married | 28.3% | 33.3% | 33.8% |
| Divorced | 15.9% | 16.8% | 10.8% |
| Widowed | 5.6% | 12.0% | 5.6% |
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| Household Size | 2.62 | 2.44 | 2.60 |
| Households | 981 | 2,048 | 124,010,992 |
| Family Households | 630 | 1,249 | 80,755,759 |
| Married couple, w/children | 36.5% | 20.5% | 30.5% |
| Married couple, no children | 39.8% | 35.0% | 42.9% |
| Non Family Households | 351 | 799 | 43,255,233 |
| Single householder, w/children | 13.5% | 29.3% | 15.8% |
| Single householder, no children | 10.2% | 15.2% | 10.8% |