| PEOPLE | Oyster Bay | Port St. Lucie | United States |
| Population | 6,707 | 164,603 | 308,035,306 |
| Pop. Density | 5,438 | 1,444 | 87 |
| Pop. Change | -1.79% | 84.52% | 8.07% |
| Median Age | 42.6 | 39.8 | 37.3 |
| Households | 2,758 | 60,902 | 116,716,292 |
| Household Size | 2.43 | 2.68 | 2.58 |
| Male Population | 48.29% | 48.60% | 49.27% |
| Female Population | 51.71% | 51.40% | 50.96% |
| Married Population | 46.66% | 52.82% | 47.02% |
| Single Population | 53.34% | 47.18% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 5.04% | 6.18% | 6.56% |
| Age 5 to 9 | 5.59% | 6.68% | 6.61% |
| Age 10 to 14 | 6.16% | 7.29% | 6.71% |
| Age 15 to 17 | 3.76% | 4.30% | 4.21% |
| Age 18 to 20 | 1.55% | 2.49% | 2.95% |
| Age 21 to 24 | 5.67% | 5.06% | 7.01% |
| Age 25 to 34 | 12.60% | 11.45% | 13.33% |
| Age 35 to 44 | 13.09% | 14.07% | 13.33% |
| Age 45 to 49 | 15.71% | 14.83% | 14.61% |
| Age 50 to 54 | 15.71% | 14.83% | 14.61% |
| Age 55 to 59 | 13.18% | 11.86% | 11.84% |
| Age 60 to 64 | 13.18% | 11.86% | 11.84% |
| Age 65 to 74 | 7.60% | 8.77% | 7.05% |
| Age 75 to 84 | 6.38% | 5.19% | 4.24% |
| Age 85 and over | 3.67% | 1.84% | 1.78% |
| RACE | | | |
| White | 85.00% | 74.29% | 72.41% |
| Black | 3.32% | 16.34% | 12.61% |
| Asian | 2.92% | 1.98% | 4.75% |
| American Indian | 0.34% | 0.38% | 0.95% |
| Other | 8.41% | 7.00% | 9.28% |
| Hispanic | 7.77% | 4.18% | 16.35% |
| Non-Hispanic | 92.23% | 95.82% | 83.65% |
| FAMILY | | | |
| Married, w/children | 33.11% | 29.70% | 30.42% |
| Married, no children | 43.13% | 45.55% | 42.46% |
| Single, w/children | 10.45% | 13.31% | 14.39% |
| Single, no children | 13.30% | 11.44% | 12.73% |
| Divorced | 8.12% | 11.37% | 10.62% |
| Separated | 3.02% | 3.92% | 4.97% |
| Widowed | 8.05% | 6.91% | 6.14% |
| Now Married | 46.92% | 53.17% | 46.32% |
| Never Married | 33.89% | 24.62% | 31.95% |
