| PEOPLE | Onancock | Chester | United States |
| Population | 1,263 | 4,167 | 308,035,306 |
| Pop. Density | 1,201 | 818 | 87 |
| Pop. Change | -20.37% | 18.80% | 8.07% |
| Median Age | 50.7 | 42.6 | 37.3 |
| Households | 594 | 1,764 | 116,716,292 |
| Household Size | 2.1 | 2.43 | 2.58 |
| Male Population | 44.89% | 48.64% | 49.27% |
| Female Population | 55.11% | 51.36% | 50.96% |
| Married Population | 38.67% | 50.29% | 47.02% |
| Single Population | 61.33% | 49.71% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 4.12% | 6.02% | 6.56% |
| Age 5 to 9 | 5.94% | 5.38% | 6.61% |
| Age 10 to 14 | 4.59% | 5.35% | 6.71% |
| Age 15 to 17 | 2.61% | 4.20% | 4.21% |
| Age 18 to 20 | 2.53% | 2.16% | 2.95% |
| Age 21 to 24 | 4.75% | 5.33% | 7.01% |
| Age 25 to 34 | 10.29% | 11.62% | 13.33% |
| Age 35 to 44 | 7.60% | 13.63% | 13.33% |
| Age 45 to 49 | 15.52% | 17.57% | 14.61% |
| Age 50 to 54 | 15.52% | 17.57% | 14.61% |
| Age 55 to 59 | 19.87% | 13.63% | 11.84% |
| Age 60 to 64 | 19.87% | 13.63% | 11.84% |
| Age 65 to 74 | 10.69% | 8.74% | 7.05% |
| Age 75 to 84 | 7.05% | 4.90% | 4.24% |
| Age 85 and over | 4.43% | 1.49% | 1.78% |
| RACE | | | |
| White | 60.65% | 88.22% | 72.41% |
| Black | 34.36% | 6.91% | 12.61% |
| Asian | 1.03% | 1.18% | 4.75% |
| American Indian | 0.24% | 0.36% | 0.95% |
| Other | 3.72% | 3.34% | 9.28% |
| Hispanic | 1.05% | 3.23% | 16.35% |
| Non-Hispanic | 98.95% | 96.77% | 83.65% |
| FAMILY | | | |
| Married, w/children | 17.07% | 25.74% | 30.42% |
| Married, no children | 50.60% | 47.03% | 42.46% |
| Single, w/children | 14.37% | 14.22% | 14.39% |
| Single, no children | 17.96% | 13.00% | 12.73% |
| Divorced | 9.73% | 13.58% | 10.62% |
| Separated | 13.03% | 3.11% | 4.97% |
| Widowed | 11.90% | 4.55% | 6.14% |
| Now Married | 39.01% | 50.30% | 46.32% |
| Never Married | 26.32% | 28.47% | 31.95% |
