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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

2016 · 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
243 Otter Creek 111
242 Horseshoe Beach 164
241 Layton 208
240 Ebro 239
239 Sopchoppy 414
238 Bell 471
237 Jay 508
236 Yankeetown 542
235 Sea Ranch Lakes 545
234 Laurel Hill 562
233 Westlake 569
232 Melbourne Village 679
231 Cedar Key 684
230 Shalimar 733
229 Jupiter Island 810
228 Golden Beach 971
227 Medley 990
226 Bradenton Beach 1,020
225 Mexico Beach 1,072
224 Bronson 1,097
223 Anna Maria 1,187
222 San Antonio 1,207
221 Indian Shores 1,280
220 Palm Beach Shores 1,292
219 Callahan 1,335
…
84 Venice 23,240
83 Jacksonville Beach 23,450
82 Hialeah Gardens 23,650
81 Sebastian 23,817
80 Palmetto Bay 24,409
79 Crestview 24,519
78 Tarpon Springs 24,655
…

Source: U.S. Census Bureau, Population Estimates Program, 2016

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.