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County · Florida

St. Johns County

334,928Population
22.5 %Change since 2020
13,497Net migration
4.0 %Unemployment rate

Facts

Population
334,928 (2024)
Change since 2020
22.5 %
Net migration
13,497 (2023)
Unemployment rate
4.0 % (2025)
State
Florida
Population base, April 2020
273,423 (2020)
Births
2,507 (2023)
Births per 1,000 residents, 2023
7.5
Deaths
2,554 (2023)
Deaths per 1,000 residents, 2023
7.6
Natural change, 2023
-47
International migration
1,619 (2023)
Domestic migration
11,878 (2023)
Net migration per 1,000, 2023
40.3
Postal code
FL
FIPS code
12109

Sources: US Census Bureau — Population Estimates, Bureau of Labor Statistics — LAUS

Unemployment rate, annual average

199020254.05.2
PeriodValue
20254.0 %
20243.2 %
20232.8 %
20222.5 %
20213.3 %
20205.7 %
20192.8 %
20183.1 %
20173.6 %
20164.0 %
20154.0 %
20144.9 %

Population estimates, 2020–2024

20202024334.9K277.1K
PeriodValue
2024334,928
2023321,510
2022307,837
2021293,292
2020277,105