Sullivan's Island is a city located in Charleston County South Carolina. Sullivan's Island has a 2024 population of 1,921. Sullivan's Island is currently growing at a rate of 0.31% annually and its population has increased by 1.16% since the most recent census, which recorded a population of 1,899 in 2020.
The average household income in Sullivan's Island is $291,546 with a poverty rate of 10.11%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Sullivan's Island is 51.7 years, 46.7 years for males, and 55.9 years for females.
According to the most recent ACS, the racial composition of Sullivan's Island was:
White
Asian
Two or more races
Other race
Black or African American
Native American
Native Hawaiian or Pacific Islander
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 846 | 2.74 | 84.3 | 15.7 |
| Married | 578 | 2.96 | 88.2 | 11.8 |
| Non Family | 225 | 2.13 | 74.2 | 25.8 |
| Female | 34 | 3.09 | 100 | 0 |
| Male | 9 | 2.67 | 22.2 | 77.8 |
2.93
Average Family Size
2.74
Average Household Size
84.3%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
The highest rate of high school graduation is among white people with a rate of 100%.
The highest rate of bachelors degrees is among asian people with a rate of 100%.
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
97.13% of Sullivan's Island residents speak only English, while 2.87% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 1.35% of the population.
rate
10.11%
Overall Poverty Rate
6.63%
Male Poverty Rate
13.65%
Female Poverty Rate
The race most likely to be in poverty in Sullivan's Island is White, with 10.47% below the poverty level.
The race least likely to be in poverty in Sullivan's Island is White, with 10.47% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 1.79%. Among those working part-time, it was 16.8%, and for those that did not work, the poverty rate was 17.59%.
Married
Widowed
Divorced
Separated
NeverMarried
60.7%
Overall Marriage Rate
61.2%
Male Marriage Rate
60.3%
Female Marriage Rate
male
female
The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.
Married
Widowed
Divorced
Separated
NeverMarried
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
10.69%
Veteran Poverty Rate
7.63%
Veteran Disability Rate
LaborForceParticipation
60.6%
Labor Force Participation
59.7%
Employment Rate
1.6%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
Europe
Asia
Africa
Oceania
Latin America
North America
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Europe
Asia
Africa
Oceania
Latin America
North America
40.48%
Born in Sullivan's Island
97.71%
Native Born
2.29%
Foreign Born
0.78%
Non Citizen
1.51%
Naturalized
97.71% of Sullivan's Island residents were born in the United States, with 40.48% having been born in South Carolina. 0.78% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.
Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2029 | 1,948 | 5 | 0.26% |
| 2028 | 1,943 | 6 | 0.31% |
| 2027 | 1,937 | 5 | 0.26% |
| 2026 | 1,932 | 6 | 0.31% |
| 2025 | 1,926 | 5 | 0.26% |
| 2024 | 1,921 | 6 | 0.31% |
| 2023 | 1,915 | 5 | 0.26% |
| 2022 | 1,910 | 17 | 0.9% |
| 2021 | 1,893 | -6 | -0.32% |
| 2020 | 1,899 | -29 | -1.5% |
| 2019 | 1,928 | 4 | 0.21% |
| 2018 | 1,924 | -6 | -0.31% |
| 2017 | 1,930 | 3 | 0.16% |
| 2016 | 1,927 | 20 | 1.05% |
| 2015 | 1,907 | 23 | 1.22% |
| 2014 | 1,884 | 21 | 1.13% |
| 2013 | 1,863 | 26 | 1.42% |
| 2012 | 1,837 | 17 | 0.93% |
| 2011 | 1,820 | 27 | 1.51% |
| 2010 | 1,793 | 0 | 0% |