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People Statistics · City

Population in Sebastian

2010 – 2025 · 16 data points 79 of 243 · Towns of Florida Updated Oct 23, 2026
People · Sebastian Indian River County Florida United States

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

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Overview 7 figures People 21 figures Economy 20 figures Housing 8 figures Education 10 figures Tourism 3 figures Climate 8 figures
Latest value · 2025 27,352 +1.4% since 2024
Towns of Florida · 2025 79 of 243 Place 1 is the highest value.
since 2015 +18% +1.5% a year on average
share of Indian River County 15.8% Indian River County: 172,799 · 2025
Population, 2010 – 2025 people
+18% since 2015

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

Compared with Population · people
Sebastian 27,352
Indian River County 173K
Florida 23M
United States 342M
World 8.2B

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

The series at a glance Sebastian · 2010 – 2025
Latest value 27,352 · 2025
First value 21,937 · 2010
Highest 27,352 · 2025
Lowest 21,919 · 2011
Average change +1.5% a year on average
Data points 16

By year

All years · 2010 – 2025

YearSebastianChange Indian River CountyFloridaUnited StatesWorld
2025 27,352 +1.4% 173K 23M 342M 8.2B
2024 26,975 +0.3% 172K 23M 340M 8.1B
2023 26,907 +2.0% 170K 23M 337M 8.1B
2022 26,388 +2.7% 168K 22M 334M 8B
2021 25,682 +2.3% 164K 22M 332M 7.9B
2020 25,115 +1.2% 160K 22M 332M 7.9B
2019 24,816 +1.1% 158K 21M — 7.8B
2018 24,540 +1.5% 155K 21M — 7.7B
2017 24,185 +1.5% 153K 21M — 7.6B
2016 23,817 +2.7% 150K 21M — 7.5B
2015 23,187 +2.2% 146K 20M — 7.4B
2014 22,695 +2.2% 144K 20M — 7.4B
2013 22,204 +0.7% 141K 20M — 7.3B
2012 22,039 +0.5% 140K 19M — 7.2B
2011 21,919 −0.1% 139K 19M — 7.1B
2010 21,937 138K 19M — 7B

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

Ranking · Towns of Florida

2024 · Place 1 is the highest value.

Year: 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014
Highest first Lowest first A–Z
#TerritoryPopulation
1 Jacksonville 1M
2 Miami 483K
3 Tampa 413K
4 St. Petersburg 266K
5 Port St. Lucie 259K
6 Hialeah 233K
7 Cape Coral 233K
8 Fort Lauderdale 189K
9 Pembroke Pines 177K
10 Hollywood 157K
11 Miramar 141K
12 Palm Bay 141K
13 Coral Springs 139K
14 West Palm Beach 127K
15 Pompano Beach 117K
16 Clearwater 116K
17 Miami Gardens 115K
18 Davie 111K
19 Palm Coast 106K
20 Boca Raton 102K
21 Fort Myers 100K
22 Deltona 100K
23 Plantation 99,358
24 Sunrise 99,058
25 North Port 92,798
…
77 Venice 29,866
78 Palm Springs 28,429
79 Temple Terrace 27,363
80 Sebastian 26,975
81 Tarpon Springs 25,967
82 Key West 25,607
83 Palmetto Bay 25,173
…

Source: U.S. Census Bureau, Population Estimates Program, 2024

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.