23 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Golden Gate | 1 | 30,760 | 30,376 | 1.5% | 7,877 | 3.90 | CDP |
| Immokalee | 2 | 28,653 | 28,060 | 1.06% | 1,261 | 22.72 | CDP |
| Naples | 3 | 20,084 | 19,134 | 0.96% | 1,632 | 12.30 | City |
| Marco Island | 4 | 16,508 | 15,763 | 0.91% | 1,358 | 12.16 | City |
| Lely Resort | 5 | 8,220 | 6,559 | 2.98% | 1,648 | 4.99 | CDP |
| Ave Maria | 6 | 7,369 | 4,110 | 7.14% | 707 | 10.43 | CDP |
| Pelican Bay | 7 | 6,388 | 6,257 | 0.03% | 2,168 | 2.95 | CDP |
| Naples Manor | 8 | 5,962 | 6,391 | 0.45% | 8,716 | 0.68 | CDP |
| Orangetree | 9 | 5,060 | 4,231 | 0.88% | 1,391 | 3.64 | CDP |
| Naples Park | 10 | 5,008 | 6,151 | -1.26% | 4,072 | 1.23 | CDP |
| Vineyards | 11 | 3,718 | 3,407 | 0.62% | 1,901 | 1.96 | CDP |
| Lely | 12 | 3,572 | 3,553 | 0.22% | 2,603 | 1.37 | CDP |
| Verona Walk | 13 | 3,302 | 2,630 | 3.16% | 2,623 | 1.26 | CDP |
| Berkshire Lakes | 14 | 3,095 | 2,476 | 7.13% | 4,711 | 0.66 | CDP |
| Pelican Marsh | 15 | 2,880 | 2,257 | 7.14% | 1,481 | 1.94 | CDP |
| Island Walk | 16 | 2,590 | 2,802 | -1.15% | 2,532 | 1.02 | CDP |
| Pine Ridge | 17 | 1,570 | 1,769 | -1.51% | 932 | 1.68 | CDP |
| Chokoloskee | 18 | 1,236 | 1,136 | 4.92% | 5,543 | 0.22 | CDP |
| Winding Cypress | 19 | 1,155 | 415 | 7.14% | 623 | 1.85 | CDP |
| Heritage Bay | 20 | 1,099 | 1,273 | 7.12% | 1,663 | 0.66 | CDP |
| Marco Shores-Hammock Bay | 21 | 771 | 724 | 7.08% | 869 | 0.89 | CDP |
| Everglades | 22 | 402 | 356 | 2.29% | 439 | 0.92 | City |
| Goodland | 23 | 127 | 217 | -6.62% | 825 | 0.15 | CDP |
Golden Gate is the largest city in Collier County, with a population of 30,760.
Goodland is the smallest city in Collier County.
There are 23 cities in Collier County, Florida.