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CITY · 2000 CENSUS

Seabrook Island

South Carolina · 1,250 residents · 5.94 sq mi
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The short version

With 1,250 people, Seabrook Island is a city in South Carolina. The median age is 61.7, about 26 years above the US median. This is an unusually credentialed place: 66% of adults have a four-year degree. The typical home is worth $430,000, having risen by half since 1990. Households here earn about 79% more than in South Carolina as a whole. 92% of homes are owner-occupied.

At a glance
Wealthier
median household income $66,548, above the US median
US median: $42,589
Older
median age 61.7
US median: 35.2
More educated
66% hold a bachelor's degree
US average: 24%
Less affordable
home values up 31%, inflation adjusted
US median home: $120,530
Section 01

Population & growth

Total population
1,250
+34%since 1990
from 931 in 1990
1990 – 2025
Population density
211 / sq mi
+34%since 1990
from 157 / sq mi in 1990
US average: 242
Median age
61.7
+5%since 1990
from 58.7 in 1990
US average: 35.2
Land area
5.94 sq mi
Population, 1990 – 2024
8041K2K2K2K19902000201020202024Seabrook Island
20242K
1990201020202024
Age distribution, 2000
Under 51.2%(15)
US avg: 6.8%
5 to 90.6%(7)
US avg: 7.3%
10 to 140.5%(6)
US avg: 7.3%
15 to 191.8%(23)
US avg: 7.2%
20 to 242%(25)
US avg: 6.7%
25 to 345.6%(70)
US avg: 14.2%
35 to 446.2%(78)
US avg: 16%
45 to 5413%(162)
US avg: 13.4%
55 to 6427.9%(349)
US avg: 8.6%
65 to 7426.8%(335)
US avg: 6.5%
75 to 8413%(163)
US avg: 4.4%
85 and over1.4%(17)
US avg: 1.5%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$66,548
−11%inflation adjusted, since 1990
from $56,956 in 1990
US average: $42,589
1990 – 2024
Per capita income
$49,863
+26%since 1990
from $39,694 in 1990
US average: $21,522
Poverty rate
3.8%
+0.3 ptssince 1990
from 3.5% in 1990
US average: 12.4%
Section 03

Housing

Median home value
$430,000
+31%inflation adjusted, since 1990
from $250,000 in 1990
US average: $120,530
1990 – 2024
Median gross rent
$938
+1%inflation adjusted, since 1990
from $707 in 1990
US average: $602
Owner-occupied
92.1%
+8.8 ptssince 1990
from 83.3% in 1990
7.9% rent
Section 04

Race & ethnicity

1990
White, non-Hispanic99.5%(926)
Black0%(0)
Hispanic / Latino0.2%(2)
Asian0.3%(3)
2000
White, non-Hispanic96.2%(1,203)
Black1.4%(18)
Hispanic / Latino0.9%(11)
Asian0.1%(1)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

Detailed origin tables are available for 2024; showing 2024 data.

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
65.6%
+8.9 ptssince 1990
from 56.7% in 1990
US average: 24.4%
High school or higher
99.1%
+0.8 ptssince 1990
from 98.3% in 1990
US average: 80.3%
Graduate degree
20.6%
+1.9 ptssince 1990
from 18.8% in 1990
US average: 8.8%
Section 06

Commute & transportation

Average commute
23.5 min
−25%since 1990
from 31.6 min in 1990
US average: 17.6
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Marital status
Men 15+
Never married10.8%(59)
Married83.1%(452)
Widowed3.3%(18)
Divorced2.8%(15)
Women 15+
Never married8.1%(50)
Married72.7%(450)
Widowed11.1%(69)
Divorced8.1%(50)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2000
Section 09

Health coverage

Showing 2024 (the nearest year with coverage data).

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+57%
Home value$508,600+18%
Population12,660+483%
SEE FULL COMPARISON →
SEABROOK ISLAND VS
Charleston
Income$92,414+39%
Home value$509,700+19%
Population159,423+7243%
SEE FULL COMPARISON →
SEABROOK ISLAND VS
Mount Pleasant
Income$124,755+87%
Home value$748,500+74%
Population95,469+4297%
SEE FULL COMPARISON →
SEABROOK ISLAND VS
North Charleston
Income$62,956−5%
Home value$302,200−30%
Population129,245+5853%
SEE FULL COMPARISON →
Frequently asked

How many people live in Seabrook Island, South Carolina?

Seabrook Island, South Carolina has about 1,250 residents according to the 2000 Census.

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

The typical household in Seabrook Island, South Carolina earns about $66,548 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 $430,000, and the typical rent is about $938 a month.

How educated are people in Seabrook Island, South Carolina?

About 65.6% 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 3.8% 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 319 residents, a change of about 34 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 →