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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

2017 · 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 915K
2 Miami 435K
3 Tampa 376K
4 St. Petersburg 256K
5 Hialeah 229K
6 Port St. Lucie 187K
7 Cape Coral 180K
8 Fort Lauderdale 179K
9 Pembroke Pines 169K
10 Hollywood 152K
11 Miramar 136K
12 Coral Springs 134K
13 Clearwater 116K
14 Palm Bay 115K
15 Miami Gardens 114K
16 West Palm Beach 114K
17 Pompano Beach 110K
18 Davie 105K
19 Boca Raton 96,309
20 Sunrise 95,990
21 Plantation 90,798
22 Deltona 90,518
23 Miami Beach 86,769
24 Deerfield Beach 84,666
25 Palm Coast 84,486
…
78 Crestview 25,130
79 Tarpon Springs 24,865
80 Palmetto Bay 24,428
81 Sebastian 24,185
82 Venice 23,807
83 Jacksonville Beach 23,690
84 Hialeah Gardens 23,642
…

Source: U.S. Census Bureau, Population Estimates Program, 2017

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.