| | Grayville, IL | Griffin, IN | United States |
| Population | 1,554 | 117 | 329,725,481 |
| Female Population | 52.8% | 54.7% | 50.5% |
| Male Population | 47.2% | 45.3% | 49.5% |
| Median Age | 40.5 | 29.6 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,662 | 171 | 309,327,143 |
| Population - 2000 | 1,725 | 160 | 285,036,114 |
| Population - 1990 | 1,849 | 171 | 251,960,433 |
| Pop. 2000 to Now | -10.6% | 4.4% | 15.6% |
| Pop. 1990 to Now | -16.6% | -2.3% | 30.8% |
| space4 | | | |
| Population Density | 729.6 | 1,720.6 | 93.4 |
| Land Area | 2.1 | 0.1 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Grayville, IL | Griffin, IN | United States |
| Age 0 to 4 | 4.8% | 11.1% | 5.9% |
| Age 5 to 9 | 6.4% | 9.4% | 6.1% |
| Age 10 to 14 | 7.4% | 9.4% | 6.6% |
| Age 15 to 17 | 4.8% | 0.9% | 3.9% |
| Age 18 to 20 | 2.2% | 4.3% | 4.0% |
| Age 21 to 24 | 4.5% | 6.0% | 5.2% |
| Age 25 to 34 | 11.4% | 20.5% | 13.8% |
| Age 35 to 44 | 15.8% | 11.1% | 12.9% |
| Age 45 to 54 | 8.6% | 3.4% | 12.6% |
| Age 55 to 59 | 7.7% | 2.6% | 6.7% |
| Age 60 to 64 | 5.8% | 5.1% | 6.3% |
| Age 65 to 74 | 11.4% | 9.4% | 9.6% |
| Age 75 to 84 | 5.0% | 4.3% | 4.5% |
| Age 85 and over | 4.2% | 2.6% | 1.9% |
| space1 | | | |
| Race | | | |
| | Grayville, IL | Griffin, IN | United States |
| White | 93.1% | 100.0% | 59.4% |
| Black | 1.4% | 0.0% | 12.2% |
| Asian | 0.4% | 0.0% | 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 | 2.8% | 0.0% | 3.2% |
| Hispanic | 2.4% | 0.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Grayville, IL | Griffin, IN | United States |
| Married Population | 47.2% | 54.9% | 49.8% |
| Currently Married | 44.9% | 54.9% | 48.0% |
| Married but Separated | 2.2% | 0.0% | 1.8% |
| Single Population | 52.8% | 45.1% | 50.2% |
| Never Married | 24.1% | 29.3% | 33.8% |
| Divorced | 20.1% | 7.3% | 10.8% |
| Widowed | 8.7% | 8.5% | 5.6% |
| space5 | | | |
| Household Size | 2.27 | 2.79 | 2.60 |
| Households | 663 | 42 | 124,010,992 |
| Family Households | 393 | 30 | 80,755,759 |
| Married couple, w/children | 25.7% | 33.3% | 30.5% |
| Married couple, no children | 43.5% | 40.0% | 42.9% |
| Non Family Households | 270 | 12 | 43,255,233 |
| Single householder, w/children | 26.2% | 20.0% | 15.8% |
| Single householder, no children | 4.6% | 6.7% | 10.8% |