Sullivan's Island is a city located in Charleston County South Carolina. With a 2023 population of 1,860, it is the 120th largest city in South Carolina and the 7850th largest city in the United States.Sullivan's Island is currently declining at a rate of -0.53% annually and its population has decreased by -1.59% since the most recent census, which recorded a population of 1,890 in 2020. Spanning over 3 miles, Sullivan's Island has a population density of 745 people per square mile.
The average household income in Sullivan's Island is $244,808 with a poverty rate of 15.42%. 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 49.2 years, 39 years for males, and 55 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
2.91
Average Family Size
2.79
Average Household Size
82.8%
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 black people with a rate of 100%.
The highest rate of bachelors degrees is among black people with a rate of 100%.
All
Male
Female
$66,061
Average Earnings
$93,393
Average Male
$
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
97.57% of Sullivan's Island residents speak only English, while 2.43% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 1.52% of the population.
rate
15.42%
Overall Poverty Rate
9.46%
Male Poverty Rate
17.76%
Female Poverty Rate
The race most likely to be in poverty in Sullivan's Island is White, with 15.89% below the poverty level.
The race least likely to be in poverty in Sullivan's Island is White, with 15.89% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 3.52%. Among those working part-time, it was 22.1%, and for those that did not work, the poverty rate was 18.39%.
rate
rate
Households
Families
MarriedFamilies
NonFamilies
mean
median
Married
Widowed
Divorced
Separated
NeverMarried
48.5%
Overall Marriage Rate
49.1%
Male Marriage Rate
47.9%
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
Second Gulf War
First Gulf War
Vietnam
Korea
World War II
104
Number of Veterans
104
Male Veterans
Female Veterans
count
count
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
15.38%
Veteran Poverty Rate
0%
Veteran Disability Rate
LaborForceParticipation
62%
Labor Force Participation
59.4%
Employment Rate
4.2%
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
45.5%
Born in Sullivan's Island
111.01%
Native Born
4.18%
Foreign Born
1.38%
Non Citizen
2.8%
Naturalized
111.01% of Sullivan's Island residents were born in the United States, with 45.5% having been born in South Carolina. 1.38% of residents are not US citizens. Of those not born in the United States, the largest percentage are from North America.