| PEOPLE | Athens | Atascadero | United States |
| Population | 12,710 | 28,310 | 308,035,306 |
| Pop. Density | 755 | 1,104 | 87 |
| Pop. Change | 11.49% | 7.26% | 8.07% |
| Median Age | 34.2 | 41 | 37.3 |
| Households | 4,645 | 10,737 | 116,716,292 |
| Household Size | 2.56 | 2.52 | 2.58 |
| Male Population | 47.97% | 50.79% | 49.27% |
| Female Population | 52.03% | 49.21% | 50.96% |
| Married Population | 42.01% | 48.00% | 47.02% |
| Single Population | 57.99% | 52.00% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 7.52% | 5.89% | 6.56% |
| Age 5 to 9 | 7.13% | 5.76% | 6.61% |
| Age 10 to 14 | 7.10% | 5.90% | 6.71% |
| Age 15 to 17 | 3.86% | 3.88% | 4.21% |
| Age 18 to 20 | 4.58% | 2.20% | 2.95% |
| Age 21 to 24 | 7.78% | 5.85% | 7.01% |
| Age 25 to 34 | 13.05% | 13.44% | 13.33% |
| Age 35 to 44 | 11.92% | 12.15% | 13.33% |
| Age 45 to 49 | 11.26% | 16.54% | 14.61% |
| Age 50 to 54 | 11.26% | 16.54% | 14.61% |
| Age 55 to 59 | 10.01% | 15.37% | 11.84% |
| Age 60 to 64 | 10.01% | 15.37% | 11.84% |
| Age 65 to 74 | 7.31% | 7.15% | 7.05% |
| Age 75 to 84 | 5.58% | 4.00% | 4.24% |
| Age 85 and over | 2.90% | 1.87% | 1.78% |
| RACE | | | |
| White | 65.34% | 86.39% | 72.41% |
| Black | 17.75% | 2.07% | 12.61% |
| Asian | 0.61% | 2.42% | 4.75% |
| American Indian | 0.50% | 1.04% | 0.95% |
| Other | 15.81% | 8.08% | 9.28% |
| Hispanic | 2.97% | 97.13% | 16.35% |
| Non-Hispanic | 97.03% | 2.87% | 83.65% |
| FAMILY | | | |
| Married, w/children | 28.38% | 28.78% | 30.42% |
| Married, no children | 39.39% | 47.95% | 42.46% |
| Single, w/children | 18.92% | 12.97% | 14.39% |
| Single, no children | 13.30% | 10.31% | 12.73% |
| Divorced | 9.99% | 12.93% | 10.62% |
| Separated | 6.85% | 4.64% | 4.97% |
| Widowed | 12.39% | 4.92% | 6.14% |
| Now Married | 42.83% | 48.71% | 46.32% |
| Never Married | 27.94% | 28.81% | 31.95% |
