| | Garvin, OK | Millerton, OK | United States |
| Population | 163 | 257 | 329,725,481 |
| Female Population | 54.6% | 51.0% | 50.5% |
| Male Population | 45.4% | 49.0% | 49.5% |
| Median Age | 35.5 | 40.2 | 38.4 |
| space3 | | | |
| Population - 2010 | 253 | 322 | 309,327,143 |
| Population - 2000 | 143 | 359 | 285,036,114 |
| Population - 1990 | 128 | 234 | 251,960,433 |
| Pop. 2000 to Now | 79.0% | -12.8% | 15.6% |
| Pop. 1990 to Now | 100.0% | 33.8% | 30.8% |
| space4 | | | |
| Population Density | 84.9 | 145.2 | 93.4 |
| Land Area | 1.9 | 1.8 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Garvin, OK | Millerton, OK | United States |
| Age 0 to 4 | 8.6% | 7.8% | 5.9% |
| Age 5 to 9 | 4.9% | 3.1% | 6.1% |
| Age 10 to 14 | 9.2% | 7.4% | 6.6% |
| Age 15 to 17 | 9.8% | 5.8% | 3.9% |
| Age 18 to 20 | 3.1% | 5.1% | 4.0% |
| Age 21 to 24 | 4.9% | 8.2% | 5.2% |
| Age 25 to 34 | 9.2% | 8.6% | 13.8% |
| Age 35 to 44 | 12.9% | 11.3% | 12.9% |
| Age 45 to 54 | 17.2% | 14.4% | 12.6% |
| Age 55 to 59 | 3.7% | 5.4% | 6.7% |
| Age 60 to 64 | 5.5% | 7.4% | 6.3% |
| Age 65 to 74 | 6.1% | 7.4% | 9.6% |
| Age 75 to 84 | 3.1% | 7.4% | 4.5% |
| Age 85 and over | 1.8% | 0.8% | 1.9% |
| space1 | | | |
| Race | | | |
| | Garvin, OK | Millerton, OK | United States |
| White | 68.1% | 71.2% | 59.4% |
| Black | 1.8% | 1.9% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 12.9% | 13.2% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.6% | 0.0% | 0.4% |
| Two or More Races | 15.3% | 12.5% | 3.2% |
| Hispanic | 1.2% | 1.2% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Garvin, OK | Millerton, OK | United States |
| Married Population | 58.7% | 51.9% | 49.8% |
| Currently Married | 57.1% | 49.0% | 48.0% |
| Married but Separated | 1.6% | 2.9% | 1.8% |
| Single Population | 41.3% | 48.1% | 50.2% |
| Never Married | 21.4% | 31.0% | 33.8% |
| Divorced | 12.7% | 10.5% | 10.8% |
| Widowed | 7.1% | 6.7% | 5.6% |
| space5 | | | |
| Household Size | 2.55 | 2.99 | 2.60 |
| Households | 64 | 86 | 124,010,992 |
| Family Households | 47 | 60 | 80,755,759 |
| Married couple, w/children | 40.4% | 33.3% | 30.5% |
| Married couple, no children | 31.9% | 35.0% | 42.9% |
| Non Family Households | 17 | 26 | 43,255,233 |
| Single householder, w/children | 17.0% | 20.0% | 15.8% |
| Single householder, no children | 10.6% | 11.7% | 10.8% |