| | Agra, OK | Perkins, OK | United States |
| Population | 276 | 3,265 | 329,725,481 |
| Female Population | 50.0% | 54.5% | 50.5% |
| Male Population | 50.0% | 45.5% | 49.5% |
| Median Age | 44.7 | 27.6 | 38.4 |
| space3 | | | |
| Population - 2010 | 340 | 2,833 | 309,327,143 |
| Population - 2000 | 356 | 2,272 | 285,036,114 |
| Population - 1990 | 334 | 1,925 | 251,960,433 |
| Pop. 2000 to Now | -3.1% | 23.3% | 15.6% |
| Pop. 1990 to Now | 3.3% | 45.5% | 30.8% |
| space4 | | | |
| Population Density | 736.0 | 1,076.5 | 93.4 |
| Land Area | 0.4 | 3.0 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Agra, OK | Perkins, OK | United States |
| Age 0 to 4 | 3.6% | 8.9% | 5.9% |
| Age 5 to 9 | 5.1% | 11.6% | 6.1% |
| Age 10 to 14 | 5.8% | 9.0% | 6.6% |
| Age 15 to 17 | 6.2% | 7.0% | 3.9% |
| Age 18 to 20 | 8.0% | 3.3% | 4.0% |
| Age 21 to 24 | 2.2% | 4.1% | 5.2% |
| Age 25 to 34 | 5.4% | 18.6% | 13.8% |
| Age 35 to 44 | 14.5% | 8.9% | 12.9% |
| Age 45 to 54 | 8.3% | 5.0% | 12.6% |
| Age 55 to 59 | 5.8% | 7.4% | 6.7% |
| Age 60 to 64 | 10.5% | 4.7% | 6.3% |
| Age 65 to 74 | 8.7% | 4.8% | 9.6% |
| Age 75 to 84 | 14.5% | 5.5% | 4.5% |
| Age 85 and over | 1.4% | 1.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Agra, OK | Perkins, OK | United States |
| White | 84.8% | 87.1% | 59.4% |
| Black | 0.4% | 7.0% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 10.5% | 1.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.8% | 1.4% | 3.2% |
| Hispanic | 2.5% | 3.4% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Agra, OK | Perkins, OK | United States |
| Married Population | 58.1% | 47.7% | 49.8% |
| Currently Married | 57.6% | 47.0% | 48.0% |
| Married but Separated | 0.4% | 0.7% | 1.8% |
| Single Population | 41.9% | 52.3% | 50.2% |
| Never Married | 22.9% | 32.3% | 33.8% |
| Divorced | 11.4% | 13.4% | 10.8% |
| Widowed | 7.6% | 6.5% | 5.6% |
| space5 | | | |
| Household Size | 2.88 | 2.69 | 2.60 |
| Households | 96 | 1,214 | 124,010,992 |
| Family Households | 64 | 860 | 80,755,759 |
| Married couple, w/children | 25.0% | 36.2% | 30.5% |
| Married couple, no children | 54.7% | 27.7% | 42.9% |
| Non Family Households | 32 | 354 | 43,255,233 |
| Single householder, w/children | 17.2% | 24.3% | 15.8% |
| Single householder, no children | 3.1% | 11.9% | 10.8% |