There are 17 cities in St. Johns County, Florida.
Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)
City | Rank | State | 2024 Population | 2020 Census | Annual Change | Density (mi²) | Area (mi²) |
|---|---|---|---|---|---|---|---|
| Jacksonville | 1 | Florida | 997,164 | 951,880 | 1.15% | 1,334 | 747.26 |
| Fruit Cove | 2 | Florida | 37,061 | 33,038 | 2.39% | 2,300 | 16.11 |
| Nocatee | 3 | Florida | 28,986 | 16,914 | 11.62% | 1,081 | 26.81 |
| World Golf Village | 4 | Florida | 25,337 | 18,937 | 6.74% | 938 | 27.02 |
| Palm Valley | 5 | Florida | 19,068 | 20,540 | -1.8% | 1,563 | 12.20 |
| St. Augustine | 6 | Florida | 15,899 | 14,686 | 1.94% | 1,670 | 9.52 |
| St. Augustine Shores | 7 | Florida | 9,948 | 9,818 | 0.33% | 2,269 | 4.38 |
| St. Augustine Beach | 8 | Florida | 6,759 | 6,838 | -0.29% | 3,175 | 2.13 |
| Sawgrass | 9 | Florida | 5,363 | 4,094 | 4.75% | 1,773 | 3.02 |
| St. Augustine South | 10 | Florida | 5,180 | 4,994 | 0.92% | 3,268 | 1.58 |
| Butler Beach | 11 | Florida | 4,848 | 4,814 | 0.19% | 1,906 | 2.54 |
| Flagler Estates | 12 | Florida | 3,670 | 3,348 | 0.85% | 310 | 11.84 |
| Vilano Beach | 13 | Florida | 2,171 | 2,453 | -2.69% | 1,224 | 1.77 |
| East Palatka | 14 | Florida | 1,305 | 1,625 | -5.78% | 410 | 3.18 |
| Hastings | 15 | Florida | 1,046 | 1,304 | 7.61% | 323 | 3.24 |
| Crescent Beach | 16 | Florida | 992 | 1,085 | 2.9% | 690 | 1.44 |
| Marineland | 17 | Florida | 9 | 8 | 0% | 23 | 0.39 |
Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.
Jacksonville is the largest city in St. Johns County.
Marineland is the smallest city in St. Johns County.
There are 17 cities in St. Johns County, Florida.