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People
Statistics · Area
Population density in St. Johns County
2025 · 1 data point
15 of 67 · Regions of Florida
Updated Oct 23, 2026
Source: U.S. Census Bureau, Population Estimates Program, 2025
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Overview
6 figures
People
21 figures
Economy
20 figures
Housing
8 figures
Education
10 figures
Tourism
3 figures
Climate
3 figures
Latest value · 2025
223per km²
Regions of Florida · 2025
15 of 67
Place 1 is the highest value.
vs Florida
+32%
Florida: 169 · 2025
Compared with Population density · per km²
Sources: U.S. Census Bureau, Population Estimates Program · OECD Regional Database · World Bank — World Development Indicators
Ranking · Regions of Florida
2025 · Place 1 is the highest value.
| # | Territory | Population density | |
|---|---|---|---|
| 67 | Liberty County | 3.7 | |
| 66 | Lafayette County | 6.3 | |
| 65 | Glades County | 6.3 | |
| 64 | Taylor County | 7.8 | |
| 63 | Calhoun County | 9.0 | |
| 62 | Franklin County | 9.2 | |
| 61 | Dixie County | 9.9 | |
| 60 | Jefferson County | 10.3 | |
| 59 | Madison County | 10.4 | |
| 58 | Hamilton County | 10.7 | |
| 57 | Gulf County | 11.1 | |
| 56 | Hardee County | 15.7 | |
| 55 | Hendry County | 16.1 | |
| 54 | Holmes County | 16.2 | |
| 53 | Levy County | 16.8 | |
| 52 | Washington County | 17.6 | |
| 51 | Baker County | 19.6 | |
| 50 | Jackson County | 20.8 | |
| 49 | Okeechobee County | 21.4 | |
| 48 | DeSoto County | 22.5 | |
| 47 | Gilchrist County | 22.6 | |
| 46 | Wakulla County | 24.2 | |
| 45 | Union County | 25.7 | |
| 44 | Suwannee County | 27.0 | |
| 43 | Monroe County | 31.6 | |
| … | |||
| 18 | Polk County | 188 | |
| 17 | Escambia County | 196 | |
| 16 | Volusia County | 213 | |
| 15 | St. Johns County | 223 | |
| 14 | Manatee County | 243 | |
| 13 | Brevard County | 253 | |
| 12 | St. Lucie County | 272 | |
| … |
Source: U.S. Census Bureau, Population Estimates Program, 2025
What it means
How crowded a place is: residents per square kilometre.
How it is calculated
Residents divided by land area in square kilometres.
People
St. Johns County in numbers
Population
346K
2025
Population growth
0.52%
2025 · United States
Median age
44.2
2024
Children under 15
15.7%
2024 · Florida
Children under 18
21.6%
2024
Residents 65 and over
21.1%
2024
Life expectancy
77.9
2022 · Florida
Births per woman
1.63
2024 · United States
Birth rate
10.6
2024 · United States
Infant mortality
5.5
2024 · United States
Net migration
3.9
2023 · United States
Net domestic migration
12,549
2025