37 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| St. Petersburg | 1 | 266,411 | 259,266 | 0.54% | 4,311 | 61.80 | City |
| Clearwater | 2 | 116,528 | 117,333 | -0.14% | 4,452 | 26.18 | City |
| Largo | 3 | 82,015 | 82,597 | -0.14% | 4,402 | 18.63 | City |
| Palm Harbor | 4 | 62,627 | 61,787 | 0.56% | 3,608 | 17.36 | CDP |
| Pinellas Park | 5 | 53,506 | 53,381 | 0.05% | 3,312 | 16.15 | City |
| Dunedin | 6 | 35,839 | 36,066 | -0.13% | 3,416 | 10.49 | City |
| East Lake | 7 | 34,296 | 32,382 | 0.65% | 1,197 | 28.65 | CDP |
| Tarpon Springs | 8 | 26,356 | 25,146 | 0.93% | 2,846 | 9.26 | City |
| Lealman | 9 | 21,577 | 21,621 | 0.53% | 5,363 | 4.02 | CDP |
| Seminole | 10 | 19,149 | 19,406 | -0.27% | 3,692 | 5.19 | City |
| Safety Harbor | 11 | 16,892 | 17,049 | -0.18% | 3,430 | 4.92 | City |
| Oldsmar | 12 | 14,771 | 14,920 | -0.2% | 1,651 | 8.95 | City |
| West Lealman | 13 | 13,934 | 14,304 | -0.81% | 4,429 | 3.15 | CDP |
| Gulfport | 14 | 11,579 | 11,768 | -0.33% | 4,188 | 2.77 | City |
| Bardmoor | 15 | 9,860 | 9,650 | 0.09% | 4,500 | 2.19 | CDP |
| St. Pete Beach | 16 | 8,641 | 8,868 | -0.52% | 4,064 | 2.13 | City |
| Treasure Island | 17 | 6,486 | 6,575 | -0.28% | 4,195 | 1.55 | City |
| South Highpoint | 18 | 5,357 | 5,844 | 0.19% | 6,347 | 0.84 | CDP |
| South Pasadena | 19 | 5,248 | 5,348 | -0.38% | 8,603 | 0.61 | City |
| Kenneth City | 20 | 4,925 | 5,050 | -0.51% | 6,898 | 0.71 | Town |
| Belleair | 21 | 4,637 | 4,282 | 1.55% | 2,679 | 1.73 | Town |
| Tierra Verde | 22 | 4,160 | 4,013 | 0.73% | 3,360 | 1.24 | CDP |
| Madeira Beach | 23 | 4,071 | 3,890 | 0.89% | 4,146 | 0.98 | City |
| Indian Rocks Beach | 24 | 3,618 | 3,672 | -0.3% | 4,282 | 0.84 | City |
| Feather Sound | 25 | 3,256 | 3,466 | -0.34% | 1,149 | 2.83 | CDP |
| Ridgecrest | 26 | 3,136 | 3,865 | 1.26% | 3,532 | 0.89 | CDP |
| Harbor Bluffs | 27 | 2,896 | 3,116 | 0.07% | 4,179 | 0.69 | CDP |
| Bay Pines | 28 | 2,663 | 2,755 | -0.67% | 2,053 | 1.30 | CDP |
| Greenbriar | 29 | 2,320 | 2,764 | -0.51% | 3,986 | 0.58 | CDP |
| Belleair Bluffs | 30 | 2,268 | 2,312 | -0.4% | 4,930 | 0.46 | City |
| Redington Shores | 31 | 2,155 | 2,177 | -0.19% | 6,530 | 0.33 | Town |
| Bear Creek | 32 | 2,096 | 2,114 | 0.48% | 5,416 | 0.39 | CDP |
| Belleair Beach | 33 | 1,606 | 1,633 | -0.31% | 3,367 | 0.48 | City |
| North Redington Beach | 34 | 1,460 | 1,482 | -0.27% | 5,594 | 0.26 | Town |
| Redington Beach | 35 | 1,369 | 1,378 | -0.15% | 3,813 | 0.36 | Town |
| Indian Shores | 36 | 1,191 | 1,193 | 0% | 3,566 | 0.33 | Town |
| Belleair Shore | 37 | 74 | 76 | 0% | 1,254 | 0.06 | Town |
St. Petersburg is the largest city in Pinellas County, with a population of 266,411.
Belleair Shore is the smallest city in Pinellas County.
There are 37 cities in Pinellas County, Florida.