| | Jewett, TX | Byron, IL | United States |
| Population | 777 | 3,740 | 329,725,481 |
| Female Population | 54.1% | 52.6% | 50.5% |
| Male Population | 46.0% | 47.4% | 49.5% |
| Median Age | 34.5 | 35.3 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,164 | 3,833 | 309,327,143 |
| Population - 2000 | 861 | 2,917 | 285,036,114 |
| Population - 1990 | 668 | 2,284 | 251,960,433 |
| Pop. 2000 to Now | 42.2% | 25.1% | 15.6% |
| Pop. 1990 to Now | 83.2% | 59.8% | 30.8% |
| space4 | | | |
| Population Density | 379.2 | 1,046.5 | 93.4 |
| Land Area | 2.0 | 3.6 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Jewett, TX | Byron, IL | United States |
| Age 0 to 4 | 7.7% | 8.9% | 5.9% |
| Age 5 to 9 | 7.5% | 7.6% | 6.1% |
| Age 10 to 14 | 7.2% | 7.8% | 6.6% |
| Age 15 to 17 | 6.7% | 3.1% | 3.9% |
| Age 18 to 20 | 5.4% | 4.5% | 4.0% |
| Age 21 to 24 | 5.9% | 5.8% | 5.2% |
| Age 25 to 34 | 10.0% | 11.2% | 13.8% |
| Age 35 to 44 | 20.8% | 16.8% | 12.9% |
| Age 45 to 54 | 10.2% | 11.3% | 12.6% |
| Age 55 to 59 | 4.4% | 3.4% | 6.7% |
| Age 60 to 64 | 4.2% | 4.8% | 6.3% |
| Age 65 to 74 | 7.1% | 7.9% | 9.6% |
| Age 75 to 84 | 0.4% | 4.9% | 4.5% |
| Age 85 and over | 2.4% | 2.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Jewett, TX | Byron, IL | United States |
| White | 42.5% | 84.3% | 59.4% |
| Black | 2.8% | 0.8% | 12.2% |
| Asian | 0.0% | 1.3% | 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 | 0.0% | 5.2% | 3.2% |
| Hispanic | 54.7% | 8.3% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Jewett, TX | Byron, IL | United States |
| Married Population | 47.8% | 46.2% | 49.8% |
| Currently Married | 44.1% | 45.9% | 48.0% |
| Married but Separated | 3.6% | 0.3% | 1.8% |
| Single Population | 52.2% | 53.8% | 50.2% |
| Never Married | 37.6% | 25.7% | 33.8% |
| Divorced | 9.3% | 15.5% | 10.8% |
| Widowed | 5.3% | 12.5% | 5.6% |
| space5 | | | |
| Household Size | 2.83 | 2.45 | 2.60 |
| Households | 269 | 1,487 | 124,010,992 |
| Family Households | 159 | 881 | 80,755,759 |
| Married couple, w/children | 28.9% | 34.8% | 30.5% |
| Married couple, no children | 44.0% | 32.1% | 42.9% |
| Non Family Households | 110 | 606 | 43,255,233 |
| Single householder, w/children | 13.2% | 14.3% | 15.8% |
| Single householder, no children | 13.8% | 18.7% | 10.8% |