| Statistic | St. Petersburg | Florida | National |
| Population | 264,001 | 21,216,924 | 326,569,308 |
| Population density (sq mi) | 4,267 | 396 | 94 |
| Median age | 43.1 | 42.2 | 38.2 |
| Male/Female ratio | 0.9:1 | 1.0:1 | 1.0:1 |
| Married (15yrs & older) | 47% | 54% | 55% |
| Families w/ Kids under 18 | 35% | 36% | 42% |
| Speak English | 88% | 71% | 78% |
| Speak Spanish | 6% | 22% | 13% |
| Race | St. Petersburg | Florida | National |
| White | 69.03% | 71.64% | 70.42% |
| Black | 21.26% | 15.94% | 12.62% |
| Asian | 3.48% | 2.78% | 5.64% |
| American Indian | 0.21% | 0.26% | 0.82% |
| Native Hawaiian | 0.04% | 0.06% | 0.19% |
| Mixed race | 4.65% | 6.02% | 5.17% |
| Other race | 1.34% | 3.30% | 5.14% |
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