US Census Data

Kiawah Island vs Sullivan's Island

A side-by-side comparison of Kiawah Island and Sullivan's Island: population, income, housing, and more.

Kiawah Island and Sullivan's Island are places in South Carolina. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Kiawah Island has the higher population (2,196 vs 2,127 in Sullivan's Island). Kiawah Island has the higher median household income ($236,607 vs $179,614 in Sullivan's Island). Sullivan's Island has the higher median home value ($2,000,001 vs $1,723,200 in Kiawah Island).

Population, income & housing

Kiawah IslandSullivan's Island
Population2,1962,127
Median age66.0 yrs52.9 yrs
Median household income$236,607$179,614
Median home value$1,723,200$2,000,001
Median gross rent$2,402
Housing units3,8961,078
Homeownership rate98.1%84.6%
Bachelor's degree or higher86.5%87.2%
Unemployment rate3.1%1.7%

Trends (ACS 5-year, 2019–2023)

Kiawah IslandSullivan's Island
Population1,676 → 2,196 (+31.0%)2,203 → 2,127 (-3.4%)
Median household income$193,750 → $236,607 (+22.1%)$136,528 → $179,614 (+31.6%)
Median home value$1,532,800 → $1,723,200 (+12.4%)$1,773,100 → $2,000,001 (+12.8%)
Median gross rent$2,056 → $2,750 (+33.8%)$2,167 → $2,402 (+10.8%)

Kiawah Island

Population
1,6762,196
Median household income
$193,750$236,607
Median home value
$1,532,800$1,723,200
Median gross rent
$2,056$2,750

Sullivan's Island

Population
2,2032,127
Median household income
$136,528$179,614
Median home value
$1,773,100$2,000,001
Median gross rent
$2,167$2,402

Age & race/ethnicity

Age distribution (share)

Kiawah IslandSullivan's Island
Under 50.0%2.0%
5 to 171.4%15.5%
18 to 241.0%4.2%
25 to 340.8%5.1%
35 to 441.5%11.7%
45 to 543.1%15.1%
55 to 6436.7%19.7%
65 to 7436.7%19.6%
75 and over18.8%7.1%

Race & ethnicity (share)

Kiawah IslandSullivan's Island
White (non-Hispanic)98.1%97.0%
Black or African American0.0%0.0%
American Indian & Alaska Native0.0%0.0%
Asian1.1%0.4%
Native Hawaiian & Pacific Islander0.0%0.0%
Some other race0.0%0.0%
Two or more races0.5%0.6%
Hispanic or Latino0.2%2.1%

Educational attainment (age 25+)

Share of adults 25+

Kiawah IslandSullivan's Island
No high school diploma1.0%0.1%
High school graduate2.1%2.0%
Some college or associate's10.4%10.7%
Bachelor's degree36.2%41.2%
Graduate or professional degree50.2%45.9%

Commute to work

How workers get to work (share)

Kiawah IslandSullivan's Island
Drove alone37.3%81.1%
Carpooled1.5%1.4%
Public transit3.4%0.0%
Walked0.9%2.4%
Bicycle0.0%3.1%
Worked from home48.9%11.1%
Other means8.0%0.9%

Housing

Units in structure (share)

Kiawah IslandSullivan's Island
1-unit, detached68.4%88.9%
1-unit, attached3.3%0.2%
2 to 4 units2.6%3.6%
5 to 19 units22.5%3.4%
20 or more units2.7%3.1%
Mobile home & other0.5%0.8%

Poverty & households

Kiawah IslandSullivan's Island
Poverty rate2.7%8.3%
Average household size1.932.60
Mean commute (minutes)3317
Median year structure built19891984

Full profiles

2

Related rankings

21