| PEOPLE | Port St. Lucie | Carlsbad | United States |
| Population | 164,603 | 105,328 | 308,035,306 |
| Pop. Density | 1,444 | 2,792 | 87 |
| Pop. Change | 84.52% | 32.96% | 8.07% |
| Median Age | 39.8 | 40.5 | 37.3 |
| Households | 60,902 | 41,345 | 116,716,292 |
| Household Size | 2.68 | 2.53 | 2.58 |
| Male Population | 48.60% | 48.88% | 49.27% |
| Female Population | 51.40% | 51.12% | 50.96% |
| Married Population | 52.82% | 52.04% | 47.02% |
| Single Population | 47.18% | 47.96% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 6.18% | 5.99% | 6.56% |
| Age 5 to 9 | 6.68% | 6.95% | 6.61% |
| Age 10 to 14 | 7.29% | 7.00% | 6.71% |
| Age 15 to 17 | 4.30% | 4.15% | 4.21% |
| Age 18 to 20 | 2.49% | 1.92% | 2.95% |
| Age 21 to 24 | 5.06% | 4.46% | 7.01% |
| Age 25 to 34 | 11.45% | 11.62% | 13.33% |
| Age 35 to 44 | 14.07% | 15.03% | 13.33% |
| Age 45 to 49 | 14.83% | 16.32% | 14.61% |
| Age 50 to 54 | 14.83% | 16.32% | 14.61% |
| Age 55 to 59 | 11.86% | 12.52% | 11.84% |
| Age 60 to 64 | 11.86% | 12.52% | 11.84% |
| Age 65 to 74 | 8.77% | 6.76% | 7.05% |
| Age 75 to 84 | 5.19% | 4.71% | 4.24% |
| Age 85 and over | 1.84% | 2.57% | 1.78% |
| RACE | | | |
| White | 74.29% | 82.79% | 72.41% |
| Black | 16.34% | 1.31% | 12.61% |
| Asian | 1.98% | 7.08% | 4.75% |
| American Indian | 0.38% | 0.49% | 0.95% |
| Other | 7.00% | 8.33% | 9.28% |
| Hispanic | 4.18% | 6.08% | 16.35% |
| Non-Hispanic | 95.82% | 93.92% | 83.65% |
| FAMILY | | | |
| Married, w/children | 29.70% | 37.68% | 30.42% |
| Married, no children | 45.55% | 43.33% | 42.46% |
| Single, w/children | 13.31% | 10.40% | 14.39% |
| Single, no children | 11.44% | 8.59% | 12.73% |
| Divorced | 11.37% | 12.61% | 10.62% |
| Separated | 3.92% | 3.57% | 4.97% |
| Widowed | 6.91% | 4.69% | 6.14% |
| Now Married | 53.17% | 52.59% | 46.32% |
| Never Married | 24.62% | 26.54% | 31.95% |
