HomeSouth CarolinaCharleston CountySullivan's Island town
Sullivan's Island town, South Carolina: commercial real estate data.
Sullivan's Island town is a Census town of 2,087 people across 2.50 square miles of land, in Charleston County. Median household income is $192,813, 85.3 percent of occupied homes are owned, and the SBA record carries 1 7(a) approvals to borrowers here worth $500,000.
76 sourced place values · tier FULL · 8 sections
Sullivan's Island
What Sullivan's Island is
- Census place typetown
- Land area2.5 sq mi
- Water area0.94 sq mi
- Population per square mile of land835
- County holding the largest share of its areaCharleston County, 100.0 percent
US Census Bureau, cartographic boundary file, places, 2024 vintage. US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Sullivan's Island
How many people live in Sullivan's Island
- Population2,087
- Median age52.5
- Population under 18421 plus or minus 84
- Share under 1820.2 percent
- Population 65 and over588 plus or minus 205
- Share 65 and over28.2 percent plus or minus 8.6
- Households798
- Family households568
- Share of households that are families71.2 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Sullivan's Island
Income and work in Sullivan's Island
- Median household income$192,813
- Per capita income$117,718
- Civilian labor force1,019 plus or minus 302
- Employed1,004 plus or minus 303
- Unemployed15 plus or minus 14
- Unemployment rate1.5 percent plus or minus 1.3
- Adults 25 and over1,608
- Adults 25 and over with a high school diploma or higher99.8 percent plus or minus 24.5
- Adults 25 and over with a bachelor degree or higher84.3 percent plus or minus 21.4
- Adults 25 and over with a graduate degree44.7 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Sullivan's Island
Housing in Sullivan's Island
- Housing units1,088
- Occupied units798
- Vacant units290 plus or minus 75
- Vacancy rate26.7 percent plus or minus 6.0
- Owner occupied681
- Renter occupied117 plus or minus 50
- Ownership rate85.3 percent
- Median owner-occupied home value$2,000,001
- Median gross rent, monthly$2,375 plus or minus $1,762
- Annual rent as a share of median income14.8 percent plus or minus 11.3
- Single family units992
- Share single family91.2 percent
- Units in buildings of two or more87 plus or minus 61
- Share in buildings of two or more8.0 percent plus or minus 5.5
- Mobile homes9 plus or minus 14
- Median year structure built1981
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Sullivan's Island
How Sullivan's Island gets to work
- Workers 16 and over who commute858 plus or minus 315
- Commuting under 15 minutes341 plus or minus 118
- Share commuting under 15 minutes39.7 percent plus or minus 20.1
- Commuting 30 minutes or more151 plus or minus 103
- Share commuting 30 minutes or more17.6 percent plus or minus 10.1
- Drove alone80.9 percent plus or minus 19.5
- Carpooled0.0 percent
- Public transport0.0 percent
- Walked1.9 percent plus or minus 1.8
- Worked from home14.2 percent plus or minus 6.0
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Sullivan's Island
SBA 7(a) lending to Sullivan's Island borrowers
- Approvals1
- Gross approval$500,000
- Average approval$500,000
- Median approval$500,000
- Ninetieth percentile approval$500,000
- Largest approval$500,000
- Jobs supported50
- Jobs per approval50.0
- Loans with a final outcome0
- Paid in full0
- Charged off0
- Median term120 months
- Share on real estate terms of 20 years or more0.0 percent
- Share to franchises0.0 percent
- Distinct lenders1
- Distinct industries by NAICS1
A charge-off rate is not published here. only 0 resolved loans, too few to publish a rate, and a rate over that few outcomes would move several points on one loan.
US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.
Sullivan's Island
SBA 504 lending to Sullivan's Island borrowers
- Approvals1
- Gross approval$1,357,000
- Average approval$1,357,000
- Median approval$1,357,000
- Largest approval$1,357,000
- Jobs supported21
- Loans with a final outcome0
- Charged off0
- Median term240 months
- Distinct CDCs1
US Small Business Administration, 504 FOIA release, FY2010 to FY2026 year to date, as of 2026-06-30.
Charleston County, not Sullivan's Island
Charleston County context, not Sullivan's Island figures
These are Charleston County figures. There is no place level equivalent published for any of them, so they are shown as the county backdrop and never as Sullivan's Island measurements.
- Establishments in Charleston County15,801
- Employment at those establishments, Charleston County226,330
- Covered employment, Charleston County278,476
- Average annual pay, Charleston County$68,271
- Average weekly wage, Charleston County$1,313
- Housing units permitted, Charleston County4,153
- Of those, single family, Charleston County3,052
- County product, 2024, Charleston County$50,461,876,000
- County product change over the prior year, Charleston County7.9 percent
- Average income of an arriving household, Charleston County$117,050
Every figure in this section is published for Charleston County as a whole and is not a measurement of Sullivan's Island. It is here because a county backdrop is what a credit committee reads a place against, and it is labelled so that it can never be quoted as the place's own.
US Census Bureau, County Business Patterns, 2023. US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages. US Census Bureau, Building Permits Survey, 2024 annual. US Bureau of Economic Analysis, Regional, table CAGDP2, CAGDP2, through 2024. US Internal Revenue Service, Statistics of Income county migration flows, 2021 to 2022 filing years.
Coverage
What this page does not hold.
Every item below could be filled with a plausible figure. None of them is. On a page a lender may read, a number that cannot be traced is worse than an absence, so the absences are named.
- This place is not listed as a community in the FEMA Community Status Book, so no NFIP participation or CRS class is shown.
- Parcel level detail, zoning and flood zone at an address are resolved in the platform, not on this page.
SBA figures count approvals to borrowers whose address is in the place. They are not approvals for projects inside the place boundary: the tape records a borrower city and a project county, and those can differ.
Common questions
Sullivan's Island questions, answered from the record.
How many people live in Sullivan's Island, South Carolina?
2,087, in 798 households. Sullivan's Island town covers 2.50 square miles of land, which is 835 people per square mile. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
What county is Sullivan's Island in?
Charleston County, which holds 100.0 percent of the place by area. Source: US Census Bureau, cartographic boundary file, places, 2024 vintage.
What is the median household income in Sullivan's Island?
$192,813. The median owner-occupied home is valued at $2,000,001. Median gross rent is $2,375 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
How much SBA lending goes to Sullivan's Island businesses?
1 7(a) approvals totalling $500,000, across 1 lenders, median approval $500,000, plus 1 504 approvals worth $1.4 m. These count approvals to borrowers whose address is in Sullivan's Island, not projects sited inside the place boundary, and they are approvals recorded in the release rather than loans disbursed.
Do SBA loans to Sullivan's Island borrowers get paid back?
No rate is published for Sullivan's Island. only 0 resolved loans, too few to publish a rate, and a percentage over that few outcomes would move several points on a single loan. The counts are shown instead.
Are the county figures on this page Sullivan's Island figures?
No, and they are labelled so. County Business Patterns, QCEW, the Building Permits Survey, BEA product and IRS migration are published for Charleston County as a whole and there is no place level equivalent. They appear in one clearly marked section as context and are never presented as measurements of Sullivan's Island.
Is zoning published for Sullivan's Island?
Not yet. The zoning layer is in build. Nothing on this page presents parcel level zoning.