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CITY

Seabrook Island

South Carolina · 2,171 residents (2025 est.) · 5.94 sq mi
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The short version

With 2,204 people, Seabrook Island is a city in South Carolina. The median age is 68.9, about 30 years above the US median. This is an unusually credentialed place: 78% of adults have a four-year degree. The typical home is worth $1,001,400, having more than doubled since 2000. Households here earn about 84% more than in South Carolina as a whole. Owners hold 96% of the housing stock.

At a glance
Wealthier
above the US median
US median: $82,259
Older
median age 68.9
US median: 38.9
More educated
78% hold a bachelor's degree
US average: 36%
Less affordable
home values up 28%, inflation adjusted
US median home: $376,019
Section 01

Population & growth

Total population
2,204
+76%since 2000
from 1,250 in 2000
2,171 in 2025 (Census Bureau estimate)
1990 – 2025
Population density
371 / sq mi
+32%since 2009
from 282 / sq mi in 2009
US average: 281
Median age
68.9
+12%since 2000
from 61.7 in 2000
US average: 38.9
Land area
5.94 sq mi
Population, 1990 – 2024
8041K2K2K2K19902000201020202024Seabrook Island
20242K
1990201020202024
Age distribution, 2024
Under 50%(0)
US avg: 5.6%
5 to 90.3%(7)
US avg: 6%
10 to 140%(0)
US avg: 6.4%
15 to 190%(0)
US avg: 6.6%
20 to 240.1%(2)
US avg: 6.5%
25 to 340.6%(13)
US avg: 13.7%
35 to 444.2%(93)
US avg: 13.2%
45 to 543.3%(73)
US avg: 12.2%
55 to 6428%(617)
US avg: 12.7%
65 to 7438.6%(850)
US avg: 10.2%
75 to 8422.5%(496)
US avg: 5.1%
85 and over2.4%(53)
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$127,500
+5%inflation adjusted, since 2000
from $66,548 in 2000
US average: $82,259
1990 – 2024
Per capita income
$132,020
+165%since 2000
from $49,863 in 2000
US average: $44,673
Households earning $100K+
73.3%
+7.6 ptssince 2009
from 65.7% in 2009
US average: 53.3%
Poverty rate
4.4%
+0.6 ptssince 2000
from 3.8% in 2000
US average: 12.5%
Income inequality (Gini)
0.531
+11%since 2010
from 0.479 in 2010
US average: 0.476
Workforce by industry, 2024
Other services18.9%
US avg: 6.7%
Public administration12%
US avg: 4.8%
Retail trade7.3%
US avg: 9.9%
Wholesale trade7.1%
US avg: 6.9%
Transportation & warehousing4.1%
US avg: 2.2%
Information3.2%
US avg: 10.8%
Finance & insurance1.7%
US avg: 5.9%
Professional, scientific, technical1.7%
US avg: 5.1%
Arts, entertainment, food0.9%
US avg: 1.9%
Agriculture, forestry, fishing0%
US avg: 1.6%
Construction0%
US avg: 1.2%
Manufacturing0%
US avg: 0.4%
Education & health services0%
US avg: 0.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

Median home value
$1,001,400
+28%inflation adjusted, since 2000
from $430,000 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$3,501
+105%inflation adjusted, since 2000
from $938 in 2000
US average: $1,442
Owner-occupied
95.8%
+3.6 ptssince 2000
from 92.1% in 2000
4.2% rent
Vacancy rate
51.4%
−8.3 ptssince 2009
from 59.7% in 2009
US average: 10.0%
Persons per household
1.76 people
−12%since 2009
from 2.00 people in 2009
US average: 2.54
Owner cost-burdened
28.7%
−4.6 ptssince 2009
from 33.3% in 2009
US average: 22.9%
Renter cost-burdened
34.0%
+8.4 ptssince 2009
from 25.5% in 2009
US average: 47.4%
Afford Score
7.9
+7%since 2009
from 7.4 in 2009
2009 – 2024
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Gentrification Score
34
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
Section 04

Race & ethnicity

2000
White, non-Hispanic96.2%(1,203)
Black1.4%(18)
Hispanic / Latino0.9%(11)
Asian0.1%(1)
Other0%
2024
White, non-Hispanic96.1%(2,118)
Black0.2%(5)
Hispanic / Latino1.8%(40)
Asian0.6%(13)
Other1.3%(28)
Diversity Score
9
+108%since 2009
from 5 in 2009
2009 – 2024
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Section 04 · Origins

Detailed origins & ancestry

Hispanic origin
Cuban0.6%(13)
Dominican0.3%(7)
Spaniard0.2%(4)
Asian origin
Chinese0.3%(7)
Ancestry
English28.9%(638)
Irish17.5%(386)
German17.2%(380)
American10.3%(227)
Italian5.2%(115)
Polish3.7%(82)
Russian3%(66)
Scottish2.4%(53)
Scotch-Irish2.3%(51)
French1.7%(38)
Swedish1.6%(36)
British1.6%(35)
+ 24 more ancestry groups with data
Swiss1.5%(33)
Hungarian1.4%(30)
Greek1.2%(27)
Dutch1.1%(25)
Welsh0.9%(20)
Norwegian0.7%(16)
Ukrainian0.7%(15)
Bulgarian0.6%(14)
Arab0.5%(10)
Lebanese0.5%(10)
Lithuanian0.5%(10)
Portuguese0.5%(10)
Armenian0.2%(5)
Belgian0.2%(5)
Croatian0.2%(5)
Czech0.2%(5)
Danish0.2%(5)
Serbian0.2%(5)
Nigerian0.2%(5)
Austrian0.1%(3)
Canadian0.1%(3)
Section 05

Education

Bachelor's degree or higher
78.4%
+12.8 ptssince 2000
from 65.6% in 2000
US average: 35.6%
High school or higher
99.6%
+0.5 ptssince 2000
from 99.1% in 2000
US average: 89.6%
Graduate degree
38.1%
+17.5 ptssince 2000
from 20.6% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
28.2 min
+20%since 2000
from 23.5 min in 2000
US average: 26.5
Drive alone to work
47.4%
−13.6 ptssince 2009
from 61.0% in 2009
US average: 68.9%
Carpooled to work
2.4%
−3.2 ptssince 2009
from 5.6% in 2009
US average: 8.5%
Public transit
0.0%
−0.6 ptssince 2009
from 0.6% in 2009
US average: 3.2%
Worked from home
45.4%
+22.8 ptssince 2009
from 22.7% in 2009
US average: 15.0%
Walked to work
2.3%
+1.9 ptssince 2009
from 0.4% in 2009
US average: 2.4%
Biked to work
1.3%
−6.4 ptssince 2009
from 7.8% in 2009
US average: 0.4%
No vehicle available
1.7%
Unchangedsince 2009
from 1.7% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
0.0%
−5.6 ptssince 2011
from 5.6% in 2011
US average: 5.2%
Labor force participation
34.2%
−5.9 ptssince 2011
from 40.1% in 2011
US average: 63.5%
Women 20-64 in the labor force
47.6%
+5.9 ptssince 2020
from 41.7% in 2020
US average: 74.6%
Self-employed
3.1%
−7.2 ptssince 2009
from 10.2% in 2009
US average: 13.1%
Management & professional
69.6%
+17.0 ptssince 2009
from 52.7% in 2009
US average: 42.5%
Section 08

People & community

Male
48.9%
−0.9 ptssince 2009
from 49.8% in 2009
Female
51.1%
+0.9 ptssince 2009
from 50.2% in 2009
Foreign born
2.3%
−2.9 ptssince 2009
from 5.2% in 2009
US average: 14.1%
Veterans
8.2%
−13.5 ptssince 2009
from 21.7% in 2009
US average: 6.2%
With a disability
7.4%
−4.7 ptssince 2012
from 12.1% in 2012
US average: 13.3%
Uninsured
1.4%
−3.0 ptssince 2013
from 4.4% in 2013
US average: 8.4%
Broadband at home
98.9%
+6.0 ptssince 2017
from 92.9% in 2017
US average: 91.0%
Computer in household
99.7%
+1.2 ptssince 2020
from 98.5% in 2020
US average: 95.5%
Same house as last year
86.4%
+0.9 ptssince 2020
from 85.6% in 2020
US average: 87.7%
English only at home
96.1%
+2.6 ptssince 2016
from 93.6% in 2016
US average: 77.7%
Spanish at home
1.0%
−2.5 ptssince 2016
from 3.5% in 2016
US average: 13.6%
Marital status
Men 15+
Never married3.8%(41)
Married86.6%(933)
Widowed2.8%(30)
Divorced6.8%(73)
Women 15+
Never married1.1%(12)
Married82.9%(929)
Widowed8.8%(98)
Divorced7.2%(81)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09

Health coverage

Uninsured
1.4%
−3.0 ptssince 2013
from 4.4% in 2013
US average: 8.4%
Employer-based
46.2%
−3.3 ptssince 2020
from 49.5% in 2020
US average: 54.8%
Direct-purchase
36.7%
−0.8 ptssince 2020
from 37.5% in 2020
US average: 13.8%
Medicare
62.1%
+0.2 ptssince 2020
from 61.9% in 2020
US average: 18.4%
Medicaid
2.5%
+0.1 ptssince 2020
from 2.4% in 2020
US average: 20.9%
VA health care
0.9%
−3.7 ptssince 2020
from 4.6% in 2020
US average: 2.2%
Any private
75.9%
−5.8 ptssince 2020
from 81.7% in 2020
US average: 67.1%
Any public
63.3%
+1.4 ptssince 2020
from 61.9% in 2020
US average: 36.7%

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)0%(0)
US avg: 26.4%
Gulf War (1990s)6.1%(11)
US avg: 24.3%
Vietnam era67.8%(122)
US avg: 33.1%
Korean War6.7%(12)
US avg: 4.5%
World War II2.2%(4)
US avg: 1%

Share of the 180 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
Drill deeper

Places similar to Seabrook Island

Ocean Ridge
Pop 1,868
Atlantis
Pop 2,140
Pine Ridge CDP (Collier County)
Pop 1,910
Old Miakka
Pop 1,818
Places similar to Seabrook Island
Head to head

Compare Seabrook Island to nearby cities

SEABROOK ISLAND VS
James Island
Income$104,217−18%
Home value$508,600−49%
Population12,660+483%
SEE FULL COMPARISON →
SEABROOK ISLAND VS
Charleston
Income$92,414−28%
Home value$509,700−49%
Population159,423+7243%
SEE FULL COMPARISON →
SEABROOK ISLAND VS
Mount Pleasant
Income$124,755−2%
Home value$748,500−25%
Population95,469+4297%
SEE FULL COMPARISON →
SEABROOK ISLAND VS
North Charleston
Income$62,956−51%
Home value$302,200−70%
Population129,245+5853%
SEE FULL COMPARISON →
Frequently asked

How many people live in Seabrook Island, South Carolina?

Seabrook Island, South Carolina has about 2,204 residents according to the 2024 American Community Survey.

What is the median household income in Seabrook Island, South Carolina?

The typical household in Seabrook Island, South Carolina earns about $127,500 a year. Half of households make more than that, and half make less.

Is Seabrook Island, South Carolina expensive?

In Seabrook Island, South Carolina, the median home is worth about $1,001,400, and the typical rent is about $3,501 a month.

How educated are people in Seabrook Island, South Carolina?

About 78.4% of adults age 25 and over in Seabrook Island, South Carolina hold a bachelor's degree or higher.

What is the poverty rate in Seabrook Island, South Carolina?

About 4.4% of people in Seabrook Island, South Carolina live below the federal poverty line.

Has Seabrook Island, South Carolina grown since 1990?

Yes, Seabrook Island, South Carolina has grown since 1990. The population has added about 1,273 residents, a change of about 137 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →