St. Johns County, Florida
County seat: St. Augustine · Population 346,328 (2025) · 601 sq mi
St. Johns County is the 21st most populous of Florida's 67 counties, with 346,328 people (2025 estimate). Its county seat is St. Augustine. It is part of the Northeast Florida region, one of the 10 Florida regional planning council regions. The map shows its 3 cities and towns and the 4 neighboring counties.
St. Johns County facts
- County seat
- St. Augustine
- Population (2025 estimate)
- 346,328 +26.7% since 2020
- Land area
- 601 sq mi 44th largest of 67
- Water area
- 221 sq mi
- Population density
- 577 per sq mi
- Established
- 1821
- Largest city
- Fruit Cove 35,877
- Median household income
- $109,839
- Cities and towns
- 3 plus 12 CDPs
- ZIP codes
- 12
- Time zone
- Eastern
- FIPS code
- 12109
Cities and towns in St. Johns County
St. Johns County has 3 incorporated cities, towns and villages. Populations count the people living inside St. Johns County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| St. Augustine (county seat) | City | 16,141 | |
| St. Augustine Beach | City | 6,810 | |
| Marineland | Town | 1 | Flagler County |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Fruit Cove | 35,877 | |
| Nocatee | 27,442 | |
| World Golf Village | 26,077 | |
| Palm Valley | 19,796 | |
| St. Augustine Shores | 9,462 | |
| Sawgrass | 4,929 | |
| St. Augustine South | 4,714 | |
| Butler Beach | 4,610 | |
| Flagler Estates | 4,321 | |
| Vilano Beach | 2,188 | |
| Crescent Beach | 809 | |
| Hastings | 432 |
ZIP codes in St. Johns County
12 ZIP codes reach into St. Johns County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 32033
- 32080 also Flagler County
- 32081 also Duval County
- 32082
- 32084
- 32086
- 32092
- 32095
- 32131 also Putnam County
- 32145 also Putnam County
- 32224 also Duval County
- 32259 also Duval County
Population of St. Johns County, 2020–2025
St. Johns County grew by 72,902 people (+26.7%) between April 2020 and July 2025: 468 more deaths than births and a net gain of 74,045 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 277,119 |
| 2021 | 293,352 |
| 2022 | 307,645 |
| 2023 | 320,954 |
| 2024 | 333,334 |
| 2025 | 346,328 |
Neighboring counties
- Duval County northwest · 1,062,963 people
- Flagler County south · 140,360 people
- Clay County west · 239,593 people
- Putnam County southwest · 77,734 people
Printable St. Johns County map
The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.
- PDF (Letter) (134 KB)
- PNG (2400 px) (95 KB)
Paste this code to embed the map on your site:
Sources
- Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files (1:500,000).
- Population: Census Bureau county and city estimates, Vintage 2025. CDP populations: American Community Survey 2020–2024.
- Places and ZIP codes: Census Bureau 2026 Gazetteer and 2020 ZIP Code Tabulation Area relationship files.
- County seat, founding year and name origin: Wikidata (CC0), checked against state sources.
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