| | Grannis, AR | Dyer, TN | United States |
| Population | 481 | 2,671 | 329,725,481 |
| Female Population | 46.2% | 62.4% | 50.5% |
| Male Population | 53.9% | 37.6% | 49.5% |
| Median Age | 37.5 | 24.8 | 38.4 |
| space3 | | | |
| Population - 2010 | 564 | 2,316 | 309,327,143 |
| Population - 2000 | 575 | 2,406 | 285,036,114 |
| Population - 1990 | 507 | 2,204 | 251,960,433 |
| Pop. 2000 to Now | -1.6% | -8.4% | 15.6% |
| Pop. 1990 to Now | 11.6% | -0.1% | 30.8% |
| space4 | | | |
| Population Density | 60.7 | 1,164.3 | 93.4 |
| Land Area | 7.9 | 2.3 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Grannis, AR | Dyer, TN | United States |
| Age 0 to 4 | 8.3% | 11.6% | 5.9% |
| Age 5 to 9 | 8.9% | 10.5% | 6.1% |
| Age 10 to 14 | 2.5% | 9.9% | 6.6% |
| Age 15 to 17 | 3.7% | 3.4% | 3.9% |
| Age 18 to 20 | 5.8% | 5.2% | 4.0% |
| Age 21 to 24 | 7.3% | 10.6% | 5.2% |
| Age 25 to 34 | 11.2% | 7.4% | 13.8% |
| Age 35 to 44 | 8.3% | 10.2% | 12.9% |
| Age 45 to 54 | 16.6% | 9.9% | 12.6% |
| Age 55 to 59 | 8.3% | 1.8% | 6.7% |
| Age 60 to 64 | 5.6% | 3.4% | 6.3% |
| Age 65 to 74 | 8.7% | 8.3% | 9.6% |
| Age 75 to 84 | 2.7% | 4.6% | 4.5% |
| Age 85 and over | 1.9% | 3.1% | 1.9% |
| space1 | | | |
| Race | | | |
| | Grannis, AR | Dyer, TN | United States |
| White | 79.0% | 68.0% | 59.4% |
| Black | 0.0% | 22.9% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 1.2% | 0.3% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.2% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.0% | 3.9% | 3.2% |
| Hispanic | 18.7% | 4.6% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Grannis, AR | Dyer, TN | United States |
| Married Population | 53.1% | 37.4% | 49.8% |
| Currently Married | 52.3% | 30.3% | 48.0% |
| Married but Separated | 0.8% | 7.2% | 1.8% |
| Single Population | 46.9% | 62.6% | 50.2% |
| Never Married | 25.4% | 37.1% | 33.8% |
| Divorced | 13.7% | 16.3% | 10.8% |
| Widowed | 7.8% | 9.1% | 5.6% |
| space5 | | | |
| Household Size | 2.72 | 2.85 | 2.60 |
| Households | 177 | 903 | 124,010,992 |
| Family Households | 112 | 559 | 80,755,759 |
| Married couple, w/children | 36.6% | 18.1% | 30.5% |
| Married couple, no children | 47.3% | 25.0% | 42.9% |
| Non Family Households | 65 | 344 | 43,255,233 |
| Single householder, w/children | 2.7% | 43.8% | 15.8% |
| Single householder, no children | 13.4% | 13.1% | 10.8% |