With 26,262 people, Sebastian is a city in Florida. At a median age of 58.2, this is an older place than the country as a whole. Since 2000 the city has risen by half, up 10,081 people. Owners hold 85% of the housing stock. 27% of adults hold a bachelor's degree or higher. There are 1,865 people per square mile.
At a glance
Lower income
median household income $69,409, below the US median
US median: $82,259
Older
median age 58.2
US median: 38.9
Less educated
27% hold a bachelor's degree
US average: 36%
Less affordable
home values up 90%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Sebastian
What changed most since 1990
Population10,158 → 26,262(+159%)US over the same years: +35%
Median age42.8 → 58.2(+15.4 years)US over the same years: +6.0 years
Median home value (2024 dollars)$164,165 → $317,000(+93%)US over the same years: +67%
Sebastian's population equals 16% of Indian River County's. Its number of households without a car equals 9.0% of the county's. Its number of people who work from home equals 11% of the county's.
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)3.2%(72)
US avg: 26.4%
Gulf War (1990s)12.9%(287)
US avg: 24.3%
Vietnam era45.3%(1,012)
US avg: 33.1%
Korean War4.6%(103)
US avg: 4.5%
World War II0.9%(20)
US avg: 1%
Share of the 2,233 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Sebastian, decade by decade
Sebastian population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
10,158
$63,971
$164,165
9.9%
8.5
2000
16,181
$71,640
$166,499
13.9%
20.8
2010
21,929
$68,034
$263,546
16.1%
33.2
2020
25,054
$66,645
$243,256
27.1%
40.9
2024
26,262
$69,409
$317,000
27.1%
42.3
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
