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People Statistics · Area

Population in St. Lucie County

2010 – 2025 · 16 data points 20 of 67 · Regions of Florida Updated Oct 23, 2026

Source: U.S. Census Bureau, Population Estimates Program, 2010 – 2025

Population, 2010 – 2025 people
+37% since 2015

Source: U.S. Census Bureau, Population Estimates Program, 2010 – 2025

Compared with Population · people
St. Lucie County 402K
Florida 23M
World 8.2B

Sources: U.S. Census Bureau, Population Estimates Program · World Bank — World Development Indicators

The series at a glance St. Lucie County · 2010 – 2025
Latest value 402,449 · 2025
First value 278,143 · 2010
Highest 402,449 · 2025
Lowest 278,143 · 2010
Average change +2.5% a year on average
Data points 16

By year

All years · 2010 – 2025

YearSt. Lucie CountyChange FloridaUnited StatesWorld
2025 402,449 +2.8% 23M 342M 8.2B
2024 391,592 +3.6% 23M 340M 8.1B
2023 377,820 +4.7% 23M 337M 8.1B
2022 360,720 +4.7% 22M 334M 8B
2021 344,403 +3.9% 22M 332M 7.9B
2020 331,453 +2.7% 22M 332M 7.9B
2019 322,615 +2.3% 21M — 7.8B
2018 315,481 +2.1% 21M — 7.7B
2017 308,937 +2.3% 21M — 7.6B
2016 302,093 +2.6% 21M — 7.5B
2015 294,379 +2.3% 20M — 7.4B
2014 287,704 +1.5% 20M — 7.4B
2013 283,523 +0.6% 20M — 7.3B
2012 281,716 +0.7% 19M — 7.2B
2011 279,746 +0.6% 19M — 7.1B
2010 278,143 19M — 7B

Sources: U.S. Census Bureau, Population Estimates Program · World Bank — World Development Indicators, 2010 – 2025

Ranking · Regions of Florida

2021 · Place 1 is the highest value.

#TerritoryPopulation
24 Alachua County 282K
50 Baker County 28,674
30 Bay County 180K
51 Bradford County 28,065
10 Brevard County 618K
2 Broward County 1.9M
62 Calhoun County 13,511
28 Charlotte County 195K
33 Citrus County 158K
25 Clay County 223K
18 Collier County 387K
41 Columbia County 69,976
48 DeSoto County 34,327
58 Dixie County 16,947
6 Duval County 1M
21 Escambia County 324K
35 Flagler County 121K
65 Franklin County 12,181
45 Gadsden County 43,609
56 Gilchrist County 18,334
64 Glades County 12,268
61 Gulf County 14,447
63 Hamilton County 13,079
52 Hardee County 25,318
46 Hendry County 40,207
…
14 Sarasota County 449K
13 Seminole County 471K
23 St. Johns County 293K
20 St. Lucie County 344K
34 Sumter County 135K
44 Suwannee County 44,111
54 Taylor County 20,851
…

Source: U.S. Census Bureau, Population Estimates Program, 2021

What it means

How many people live here — residents, not visitors.

How it is calculated

Official count or estimate of residents for each year: a census plus births, deaths and moves since then. Estimates are revised when a new census comes out.