| PEOPLE | Eureka | Griffin | United States |
| Population | 10,189 | 23,643 | 308,035,306 |
| Pop. Density | 984 | 1,699 | 87 |
| Pop. Change | 35.71% | 2.36% | 8.07% |
| Median Age | 36.8 | 33.8 | 37.3 |
| Households | 3,474 | 8,941 | 116,716,292 |
| Household Size | 2.86 | 2.62 | 2.58 |
| Male Population | 49.56% | 47.08% | 49.27% |
| Female Population | 50.44% | 52.92% | 50.96% |
| Married Population | 61.32% | 38.60% | 47.02% |
| Single Population | 38.68% | 61.40% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 7.13% | 8.51% | 6.56% |
| Age 5 to 9 | 9.20% | 7.45% | 6.61% |
| Age 10 to 14 | 9.13% | 7.02% | 6.71% |
| Age 15 to 17 | 5.45% | 4.15% | 4.21% |
| Age 18 to 20 | 2.23% | 2.90% | 2.95% |
| Age 21 to 24 | 3.83% | 7.13% | 7.01% |
| Age 25 to 34 | 10.44% | 14.41% | 13.33% |
| Age 35 to 44 | 16.26% | 12.91% | 13.33% |
| Age 45 to 49 | 16.92% | 12.75% | 14.61% |
| Age 50 to 54 | 16.92% | 12.75% | 14.61% |
| Age 55 to 59 | 9.80% | 10.33% | 11.84% |
| Age 60 to 64 | 9.80% | 10.33% | 11.84% |
| Age 65 to 74 | 4.98% | 6.33% | 7.05% |
| Age 75 to 84 | 2.96% | 4.36% | 4.24% |
| Age 85 and over | 1.68% | 1.76% | 1.78% |
| RACE | | | |
| White | 94.92% | 42.81% | 72.41% |
| Black | 0.81% | 52.15% | 12.61% |
| Asian | 1.90% | 1.10% | 4.75% |
| American Indian | 0.25% | 0.29% | 0.95% |
| Other | 2.12% | 3.65% | 9.28% |
| Hispanic | 9.47% | 8.55% | 16.35% |
| Non-Hispanic | 90.53% | 91.45% | 83.65% |
| FAMILY | | | |
| Married, w/children | 45.94% | 19.90% | 30.42% |
| Married, no children | 37.42% | 30.63% | 42.46% |
| Single, w/children | 10.41% | 27.00% | 14.39% |
| Single, no children | 6.24% | 22.48% | 12.73% |
| Divorced | 6.08% | 12.00% | 10.62% |
| Separated | 4.58% | 6.63% | 4.97% |
| Widowed | 4.31% | 8.99% | 6.14% |
| Now Married | 61.93% | 38.83% | 46.32% |
| Never Married | 23.10% | 33.55% | 31.95% |
