| PEOPLE | Overfield township | Neptune Beach | United States |
| Population | 1,666 | 7,037 | 308,035,306 |
| Pop. Density | 168 | 3,018 | 87 |
| Pop. Change | 8.96% | -2.39% | 8.07% |
| Median Age | 46.3 | 40.8 | 37.3 |
| Households | 704 | 3,192 | 116,716,292 |
| Household Size | 2.37 | 2.2 | 2.58 |
| Male Population | 49.28% | 50.96% | 49.27% |
| Female Population | 50.72% | 49.04% | 50.96% |
| Married Population | 55.66% | 43.64% | 47.02% |
| Single Population | 44.34% | 56.36% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 4.92% | 4.04% | 6.56% |
| Age 5 to 9 | 3.90% | 4.19% | 6.61% |
| Age 10 to 14 | 5.58% | 4.65% | 6.71% |
| Age 15 to 17 | 4.68% | 3.85% | 4.21% |
| Age 18 to 20 | 2.64% | 2.06% | 2.95% |
| Age 21 to 24 | 4.86% | 7.35% | 7.01% |
| Age 25 to 34 | 9.60% | 15.76% | 13.33% |
| Age 35 to 44 | 11.76% | 13.56% | 13.33% |
| Age 45 to 49 | 16.87% | 16.37% | 14.61% |
| Age 50 to 54 | 16.87% | 16.37% | 14.61% |
| Age 55 to 59 | 17.05% | 15.40% | 11.84% |
| Age 60 to 64 | 17.05% | 15.40% | 11.84% |
| Age 65 to 74 | 9.90% | 7.23% | 7.05% |
| Age 75 to 84 | 5.46% | 3.94% | 4.24% |
| Age 85 and over | 2.76% | 1.61% | 1.78% |
| RACE | | | |
| White | 98.08% | 94.59% | 72.41% |
| Black | 0.60% | 1.21% | 12.61% |
| Asian | 0.12% | 0.97% | 4.75% |
| American Indian | 0.18% | 0.36% | 0.95% |
| Other | 1.02% | 2.88% | 9.28% |
| Hispanic | 23.41% | 3.18% | 16.35% |
| Non-Hispanic | 76.59% | 96.82% | 83.65% |
| FAMILY | | | |
| Married, w/children | 28.76% | 26.37% | 30.42% |
| Married, no children | 48.50% | 49.80% | 42.46% |
| Single, w/children | 8.58% | 10.95% | 14.39% |
| Single, no children | 14.16% | 12.87% | 12.73% |
| Divorced | 8.62% | 17.94% | 10.62% |
| Separated | 2.21% | 2.55% | 4.97% |
| Widowed | 7.02% | 6.24% | 6.14% |
| Now Married | 55.30% | 44.44% | 46.32% |
| Never Married | 26.85% | 28.82% | 31.95% |
