City profile · South Carolina · Census ACS 2023

Seabrook Island, SC

Population, income, housing, safety, climate and schools for Seabrook Island - drawn straight from Census ACS, FBI UCR, NOAA, NCES, HUD and FEMA, refreshed on the 2024–2025 release cycle.

2,107
Residents
$124,519
Median income
$899,600
Median home
$1,787
Median rent (state)

Seabrook Island - the verdict

Seabrook Island ranks in the 88th percentile for household income nationally, out of every US city with at least 1,000 residents. Source: Census ACS.

88th
percentile, household income
96th
percentile, home value
74th
percentile, median rent
📝 How we sourced this

Population, income, and housing-cost figures come from the U.S. Census Bureau American Community Survey 5-year estimates (B-series tables). Crime data uses FBI UCR; climate uses NOAA Climate Normals; school counts come from NCES Common Core of Data; permits use the Census Building Permits Survey (BPS). See our methodology page for the full ETL pipeline and OMB / FIPS join keys.

Data Snapshot: Seabrook Island, SC

Census ACS 2023 estimates count 2,107 residents in Seabrook Island, a small town within South Carolina. Seabrook Island households earn a median of $124,519 annually, placing it in the top quartile of U.S. cities for household income, with a poverty rate of 1.0%. Seabrook Island's housing stock carries a median value of $899,600, and the median resident age is 68.5 years. 82.1% of adults here have a bachelor's degree or higher; 32.6% of working-age residents are in the labor force.

Living costs in South Carolina run below the national norm: on BEA's 100-equals-national-average cost index, South Carolina scores 93.7 (Below Average), per the 2024 Regional Price Parities release. HUD Fair Market Rent for a typical two-bedroom in this state is $1,787 per month. Statewide, average monthly utility bills in South Carolina run around $224, per EIA 2023 residential energy data. On FEMA's National Risk Index, this area rates 98.6 out of 100 for natural-hazard exposure (Very High).

Population

2,107 residents

Census ACS 2023 - South Carolina

Median Household Income

$124,519 /yr

Poverty 1.0%

Cost of Living Index (state)

93.7 (US=100)

Below Average - BEA RPP 2024, South Carolina average

How does Seabrook Island compare to other US cities?

Here's how Seabrook Island stacks up against the full field of US cities (population 1,000+), computed live from Census and FBI data.

Household income 88% higher than other cities
Home value 96% pricier than other cities
Median rent 74% pricier than other cities

"Safer than" reflects total crime rate from FBI UCR; the others use Census ACS estimates.

How we calculate these percentiles & ranks

For each metric we count every US city with population 1,000+ and a non-null value, then compute what share of them fall below Seabrook Island's value: round(cities-below ÷ total × 100). Safety is inverted (percentile = share of cities with a higher crime rate) so a higher number always means safer. The in-state rank narrows that same crime-rate comparison to only the cities PlainCities tracks in South Carolina, breaking ties alphabetically. See the methodology page for the full source-to-figure lineage.

88thIncome percentile

88th percentile nationally for median household income. Source: Census ACS 2023 / FBI UCR 2023.

How Seabrook Island's home value compares nationally

Median home value vs. every US city (population 1,000+)

$899,600 4th percentile more affordable than 4% of 15,600 US cities

$0–$25,000: 5 US cities (0%). Below this entry. $25,000–$50,000: 54 US cities (0%). Below this entry. $50,000–$75,000: 352 US cities (2%). Below this entry. $75,000–$100,000: 1,086 US cities (7%). Below this entry. $100,000–$125,000: 1,516 US cities (10%). Below this entry. $125,000–$150,000: 1,170 US cities (8%). Below this entry. $150,000–$175,000: 1,278 US cities (8%). Below this entry. $175,000–$200,000: 1,229 US cities (8%). Below this entry. $200,000–$225,000: 1,035 US cities (7%). Below this entry. $225,000–$250,000: 976 US cities (6%). Below this entry. $250,000–$275,000: 754 US cities (5%). Below this entry. $275,000–$300,000: 712 US cities (5%). Below this entry. $300,000–$325,000: 521 US cities (3%). Below this entry. $325,000–$350,000: 526 US cities (3%). Below this entry. $350,000–$375,000: 465 US cities (3%). Below this entry. $375,000–$400,000: 393 US cities (3%). Below this entry. $400,000–$425,000: 317 US cities (2%). Below this entry. $425,000–$450,000: 300 US cities (2%). Below this entry. $450,000–$475,000: 307 US cities (2%). Below this entry. $475,000–$500,000: 250 US cities (2%). Below this entry. $500,000–$525,000: 160 US cities (1%). Below this entry. $525,000–$550,000: 156 US cities (1%). Below this entry. $550,000–$575,000: 172 US cities (1%). Below this entry. $575,000–$600,000: 172 US cities (1%). Below this entry. $600,000–$625,000: 163 US cities (1%). Below this entry. $625,000–$650,000: 167 US cities (1%). Below this entry. $650,000–$675,000: 135 US cities (1%). Below this entry. $675,000–$700,000: 101 US cities (1%). Below this entry. $700,000–$725,000: 95 US cities (1%). Below this entry. $725,000–$750,000: 71 US cities (0%). Below this entry. $750,000–$775,000: 65 US cities (0%). Below this entry. $775,000–$800,000: 70 US cities (0%). Below this entry. $800,000–$825,000: 57 US cities (0%). Below this entry. $825,000–$850,000: 67 US cities (0%). Below this entry. $850,000–$875,000: 60 US cities (0%). Below this entry. $875,000–$900,000: 58 US cities (0%). This entry sits in this band. $900,000–$925,000: 47 US cities (0%). Above this entry. $925,000–$950,000: 37 US cities (0%). Above this entry. $950,000–$975,000: 31 US cities (0%). Above this entry. $975,000–$1,000,000: 470 US cities (3%). Above this entry. $1,000,000–$1,025,000: 0 US cities (0%). Above this entry. Seabrook Island $0 $1,025,000 every US city, bucketed by value

Each bar is a $25K-wide band; taller bars hold more US cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau ACS 5-Year Estimates · 2023

Income distribution context

Household income distribution - Seabrook Island, SC Seabrook Island, SC's reported median household income shown against the U.S. national quintile-share pattern (not Seabrook Island, SC-specific quintile data). The Lorenz curve traces the national cumulative income share against cumulative population share, perfect equality is the diagonal; observed inequality bows below. $ Household Income Distribution Seabrook Island, SC median $124,519/yr, vs. U.S. national quintile pattern QUINTILE SHARE OF AGGREGATE INCOME Lowest 20% 3.4% Second 20% 9.2% Middle 20% 15.1% Fourth 20% 23.2% Top 20% 49.1% LORENZ CURVE cumulative income vs. population 100% 0% 100% pop. 0%
Seabrook Island, SC's median household income (Census ACS 5-year estimate) plotted against the U.S. national income-quintile distribution pattern for context; the quintile shares and Lorenz curve are national figures, not computed specifically for Seabrook Island, SC. Diagonal = perfect equality.

Key socioeconomic indicators

Bachelor's degree or higher (adults 25+) 82.1%

Census ACS S1501, educational attainment

Poverty rate (households below FPL) 1.0%

Census ACS S1701, poverty status

Labor force participation (adults 16+) 32.6%

Census ACS S2301, share of working-age residents in the labor force

Population
2,107
Median Income
$124,519
Median Home Value
$899,600
Median Age
68.5
Poverty Rate
1.0%
Labor force participation
32.6%
Bachelor's Degree+
82.1%

Population Change

Annual U.S. Census Bureau Population Estimates Program (PEP) estimates, 2020–2025

See the fastest-growing cities →
2,000 residents2,050 residents2,100 residents2,150 residents2,200 residents 202020212022202320242025 2,055 residents 2,171 residents ▲ +5.6%
Seabrook Island's Census PEP population estimates, 2020–2025.

Commute Patterns

How workers travel to work, Census ACS 2023

Drive Alone
48.3%
Carpool
2.5%
Public Transit
0.0%
Walk
3.8%
Work from Home
44.9%

Based on 679 workers 16 and over.

Monthly Utility Costs

State-average estimates for South Carolina - EIA 2023 residential energy data

Electricity
$130
avg/month
Natural Gas
$52
avg/month
Water & Sewer
$42
avg/month
Total Utilities
$224
estimated/month

Estimates reflect South Carolina state averages. Actual costs vary by home size, usage, and local rates. Source: U.S. Energy Information Administration (EIA) 2023.

Living Costs & Risk

Cost of living is a South Carolina state average from BEA; rent and hazard risk are county-level figures from HUD and FEMA for the county Seabrook Island sits in

Cost of Living Index
93.7
Below Average
US average = 100 · BEA RPP 2024
Typical 2-BR Rent
$1,787/mo
HUD Fair Market Rent
County-level FMR estimate
Natural Hazard Risk
98.6 / 100
Very High
FEMA NRI composite score (county)

Similar Cities in South Carolina

Sullivan's Island
2,127 people
Timmonsville
2,153 people
Blacksburg
2,158 people
Pacolet
2,164 people
Elgin
2,176 people
Graniteville
2,176 people

Cities of a Similar Size Nationwide

Population-matched peers from other states, closest to Seabrook Island's 2,107 residents (Census ACS 5-Year 2023).

Collierville, CA
2,107 people
Albion, IL
2,107 people
Long Valley, NJ
2,107 people
Arroyo Seco, NM
2,107 people
Star Valley Ranch, WY
2,107 people
Wrangell city and, AK
2,106 people

Cities with a Similar Household Income Nationwide

Median-household-income-matched peers from other states, closest to Seabrook Island's $124,519 (Census ACS 5-Year 2023, table B19013).

Vine Hill, CA
$124,528 median income
Gypsum, CO
$124,534 median income
St. Paul, TX
$124,500 median income
Trumbull Center, CT
$124,547 median income
Captain Cook, HI
$124,551 median income
Elkhorn, CA
$124,464 median income

Race & Ethnicity Composition

Race and ethnicity - Seabrook Island, SC Race categories sum to one hundred percent per Census methodology. Hispanic or Latino is shown separately as an ethnicity overlay; it cuts across all race categories per OMB Directive 15. Race & Ethnicity Composition Seabrook Island, SC - Census ACS, OMB race + ethnicity categories RACE, sums to 100% 96.8% ETHNICITY, Hispanic or Latino (any race) 1.8% White 96.8% Black or African American 0.4% Asian 0.7% American Indian 0.1% Native Hawaiian 0.0% Some other race 0.0% Two or more races 2.0% Per OMB Directive 15: Hispanic/Latino ethnicity is reported separately from the race categories.
Race categories sum to 100%. Hispanic or Latino ethnicity is reported separately and cuts across race per Census/OMB methodology.

City-level race and ethnicity, Census ACS 5-year 2023 (tables B02001, B03001), OMB Directive 15 categories.

How Seabrook Island compares to nearby South Carolina cities

Population + median household income, sourced from Census Bureau ACS 5-year B01001 (population) and B19013 (median household income).

City Population Median Household Income
Seabrook Island (this city) 2,107 $124,519
Sullivan's Island 2,127 $179,614
Timmonsville 2,153 $32,736
Blacksburg 2,158 $33,500
Census ACS 5-year FIPS SC OMB Bulletin 23-01

What do people ask about Seabrook Island, SC?

What is the population of Seabrook Island, SC? +

The population of Seabrook Island, SC stands at 2,107 according to U.S. Census Bureau ACS 2023 estimates.

What is the median household income in Seabrook Island, SC? +

In Seabrook Island, the typical household earns $124,519 per year, based on Census ACS 2023 data.

What is the cost of living in Seabrook Island? +

BEA does not publish a city-level cost-of-living figure for Seabrook Island; the closest available measure is the South Carolina state average, a cost of living index of 93.7 (U.S. average = 100), rated "Below Average" based on BEA Regional Price Parities 2024 data. Costs within South Carolina vary by metro area.

What is the median home value in Seabrook Island, SC? +

The median home value in Seabrook Island is $899,600, according to Census ACS 2023 estimates.

Source: U.S. Census Bureau ACS 5-Year 2023, Census ACS B08301/B08136, U.S. Energy Information Administration (EIA) 2023, BEA Regional Price Parities 2024, HUD Fair Market Rents 2026, FEMA National Risk Index.

Read our methodology - how this data is sourced, computed, and verified.

Primary sources: Census ACS, FBI UCR, NOAA Climate Normals, NCES.

Citation & verification links Data sourced from the U.S. Census Bureau. See our methodology for details. Retrieved and formatted by PlainCities Editorial

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Every figure on PlainCities is rendered directly from Census ACS source data, no number is typed in by an editor. This page draws directly on Census ACS source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.