| | Snyder, TX | Plainview, TX | United States |
| Population | 11,366 | 20,180 | 329,725,481 |
| Female Population | 49.4% | 51.0% | 50.5% |
| Male Population | 50.6% | 49.0% | 49.5% |
| Median Age | 32.6 | 31.6 | 38.4 |
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| Population - 2010 | 11,208 | 22,183 | 309,327,143 |
| Population - 2000 | 10,783 | 22,336 | 285,036,114 |
| Population - 1990 | 12,195 | 21,700 | 251,960,433 |
| Pop. 2000 to Now | 2.1% | -11.9% | 15.6% |
| Pop. 1990 to Now | -9.8% | -9.4% | 30.8% |
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| Population Density | 1,263.7 | 1,453.3 | 93.4 |
| Land Area | 9.0 | 13.9 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Snyder, TX | Plainview, TX | United States |
| Age 0 to 4 | 6.6% | 7.1% | 5.9% |
| Age 5 to 9 | 6.5% | 7.8% | 6.1% |
| Age 10 to 14 | 9.9% | 8.9% | 6.6% |
| Age 15 to 17 | 3.8% | 4.3% | 3.9% |
| Age 18 to 20 | 8.4% | 5.6% | 4.0% |
| Age 21 to 24 | 5.4% | 7.5% | 5.2% |
| Age 25 to 34 | 12.2% | 12.3% | 13.8% |
| Age 35 to 44 | 13.4% | 11.9% | 12.9% |
| Age 45 to 54 | 9.5% | 12.3% | 12.6% |
| Age 55 to 59 | 6.2% | 4.9% | 6.7% |
| Age 60 to 64 | 5.3% | 4.4% | 6.3% |
| Age 65 to 74 | 6.4% | 6.9% | 9.6% |
| Age 75 to 84 | 5.2% | 3.7% | 4.5% |
| Age 85 and over | 1.2% | 2.3% | 1.9% |
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| Race | | | |
| | Snyder, TX | Plainview, TX | United States |
| White | 47.9% | 27.4% | 59.4% |
| Black | 3.1% | 4.3% | 12.2% |
| Asian | 0.8% | 0.6% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.6% | 0.4% | 0.4% |
| Two or More Races | 1.5% | 2.0% | 3.2% |
| Hispanic | 46.1% | 65.4% | 18.4% |
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| Marriage & Family | | | |
| | Snyder, TX | Plainview, TX | United States |
| Married Population | 56.2% | 50.4% | 49.8% |
| Currently Married | 54.1% | 47.3% | 48.0% |
| Married but Separated | 2.2% | 3.2% | 1.8% |
| Single Population | 43.8% | 49.6% | 50.2% |
| Never Married | 28.5% | 34.4% | 33.8% |
| Divorced | 9.7% | 8.4% | 10.8% |
| Widowed | 5.6% | 6.8% | 5.6% |
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| Household Size | 2.56 | 2.76 | 2.60 |
| Households | 4,256 | 7,057 | 124,010,992 |
| Family Households | 2,991 | 5,019 | 80,755,759 |
| Married couple, w/children | 36.8% | 28.0% | 30.5% |
| Married couple, no children | 41.6% | 35.3% | 42.9% |
| Non Family Households | 1,265 | 2,038 | 43,255,233 |
| Single householder, w/children | 13.8% | 26.5% | 15.8% |
| Single householder, no children | 7.8% | 10.2% | 10.8% |