Sullivan's Island Population

2010–2026

1,976

2026 projection

4.1% since 2020 (increase)

05001K1.5K2K201020122014201620182020202220242026

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Sullivan's Island. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
20261,976+150.76%
20251,961+10.05%
20241,960+251.29%
20231,935+190.99%
20221,916+221.16%
20211,894-40.21%
20201,898-301.56%
20191,928+40.21%
20181,924-60.31%
20171,930+30.16%

Showing 10 of 17 years.

Sullivan's Island Demographics

52.5median age

Median age

Female57.3 yrs
Male49.2 yrs

Adults

1,666
588 seniors · 35%1,078 other adults

Sex

Female 49.8% · 1,040Male 50.2% · 1,047

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 21 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Sullivan's Island Income

$192,813median household income

Median household income

$192,813

Half of households earn more, half earn less

Median earnings

$91,964

Typical yearly pay for a worker 25 or older.

Poverty rate

8.8%

About 1 in 11 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Sullivan's Island Marital Status

63% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married63%65%60%
Never married21%30%12%
Divorced10%5%16%
Widowed6%0%12%
Separated<1%<1%0%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201