| PEOPLE | Decatur | Jupiter | United States |
| Population | 76,122 | 55,156 | 308,035,306 |
| Pop. Density | 1,803 | 2,569 | 87 |
| Pop. Change | -7.95% | 39.37% | 8.07% |
| Median Age | 39 | 44.7 | 37.3 |
| Households | 32,344 | 23,920 | 116,716,292 |
| Household Size | 2.24 | 2.32 | 2.58 |
| Male Population | 46.82% | 49.66% | 49.27% |
| Female Population | 53.18% | 50.34% | 50.96% |
| Married Population | 43.75% | 47.92% | 47.02% |
| Single Population | 56.25% | 52.08% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 6.69% | 4.53% | 6.56% |
| Age 5 to 9 | 6.00% | 5.25% | 6.61% |
| Age 10 to 14 | 5.72% | 5.93% | 6.71% |
| Age 15 to 17 | 3.69% | 3.69% | 4.21% |
| Age 18 to 20 | 3.25% | 1.99% | 2.95% |
| Age 21 to 24 | 7.59% | 4.63% | 7.01% |
| Age 25 to 34 | 12.69% | 11.22% | 13.33% |
| Age 35 to 44 | 10.73% | 13.15% | 13.33% |
| Age 45 to 49 | 13.91% | 16.07% | 14.61% |
| Age 50 to 54 | 13.91% | 16.07% | 14.61% |
| Age 55 to 59 | 12.87% | 13.58% | 11.84% |
| Age 60 to 64 | 12.87% | 13.58% | 11.84% |
| Age 65 to 74 | 7.89% | 10.36% | 7.05% |
| Age 75 to 84 | 5.97% | 7.16% | 4.24% |
| Age 85 and over | 3.00% | 2.45% | 1.78% |
| RACE | | | |
| White | 71.61% | 90.60% | 72.41% |
| Black | 23.26% | 1.54% | 12.61% |
| Asian | 0.92% | 2.00% | 4.75% |
| American Indian | 0.23% | 0.52% | 0.95% |
| Other | 3.98% | 5.33% | 9.28% |
| Hispanic | 1.60% | 2.72% | 16.35% |
| Non-Hispanic | 98.40% | 97.28% | 83.65% |
| FAMILY | | | |
| Married, w/children | 18.92% | 27.69% | 30.42% |
| Married, no children | 44.75% | 50.99% | 42.46% |
| Single, w/children | 22.23% | 11.39% | 14.39% |
| Single, no children | 14.10% | 9.93% | 12.73% |
| Divorced | 12.71% | 16.16% | 10.62% |
| Separated | 3.85% | 3.57% | 4.97% |
| Widowed | 7.89% | 5.80% | 6.14% |
| Now Married | 44.53% | 48.78% | 46.32% |
| Never Married | 31.03% | 25.70% | 31.95% |
