2,127 people live in Sullivan's Island, where the median age is 52.9 and the average individual income is $120,592. Data provided by the U.S. Census Bureau.
Total Population
Median Age
Population Density Population Density This is the number of people per square mile in a neighborhood.
Average individual Income
Sullivan's Island — Quick Facts
Sullivan's Island is a barrier island in Charleston County, SC (ZIP 29482). Year-round population approximately 1,700–2,000.[1] Located 6 miles from downtown Charleston via the Ben Sawyer Bridge — approximately 20 minutes without traffic. Median home price $2.5M–$3.5M; oceanfront properties regularly exceed $5M.[1] No hotels, no high-rises, no chain restaurants. Public schools feed into Wando High School (ZIP 29466) via Mount Pleasant. Flood insurance required — most parcels are FEMA Zone AE.
Sources: [1] US Census Bureau; Katherine Cox + Co. market analysis; CTAR MLS data 2024
| Detail | Sullivan's Island |
|---|---|
| County / ZIP | Charleston County / 29482 |
| Population | ~1,700–2,000 year-round[1] |
| Distance to downtown Charleston | ~6 miles / 20 min via Ben Sawyer Bridge |
| High school zone | Wando High School (Mount Pleasant, 29466)[1] |
| Median home price | $2.5M–$3.5M (interior); $5M–$15M+ (oceanfront)[1] |
| Flood zone | FEMA Zone AE — flood insurance required on all mortgaged properties |
| Island length / area | ~3.3 miles long; ~1,015 acres above high water mark |
| Access | Ben Sawyer Bridge (swing bridge from Mount Pleasant) |
| Notable | No hotels, no chain restaurants, no traffic lights; no-hotel zoning enforced |
Sources: [1] US Census Bureau; Katherine Cox + Co. market analysis; CTAR MLS data 2024; FEMA Flood Map Service Center; Charleston County School District
Considering a Move to Sullivan's Island?
Inventory here is tight — typically fewer than 20–30 active listings at any time. Don't wait to connect with an agent.
Many Sullivan's Island transactions happen off-market. Katherine Cox has deep relationships on the island and knows what's coming available before it's listed.
Sullivan's Island is one of the South Carolina Lowcountry's most historically significant and carefully preserved barrier islands. Situated at the entrance to Charleston Harbor — just 6 miles from downtown, yet distinctly separate in atmosphere — the island offers a way of living that is difficult to find anywhere else on the East Coast: uncrowded beaches, genuine community, deep historical identity, and proximity to a world-class city.
This is not a resort community. There are no hotels, no boardwalks, no chain restaurants, and no high-rises. What exists instead is a 3-mile stretch of Atlantic coastline with roughly 1,015 acres of barrier island land, a year-round population of approximately 1,700 to 2,000 residents, and a legal and regulatory framework that has deliberately kept it this way for decades. For buyers who understand what that means, Sullivan's Island has no real equivalent in the Charleston market.
Sullivan's Island is bounded by the Atlantic Ocean to the south, Breach Inlet (separating it from Isle of Palms) to the northeast, Charleston Harbor to the west, and the Intracoastal Waterway to the north. The island spans approximately 3.3 miles in length and varies from 0.3 to 0.5 miles in width. Its position at the harbor mouth has made it strategically significant for over 300 years — Fort Moultrie at the island's western end has served the nation's coastal defense from the Revolutionary War through World War II.
Middle Street runs the full length of the island from the Ben Sawyer Bridge entrance to the western tip near Fort Moultrie. Station streets (numbered 1 through 32) run perpendicular to Middle Street toward the beach, with Atlantic Avenue paralleling the oceanfront along most of the southern shore. Beach access is available at the end of most Station streets, making ocean access genuinely convenient from nearly any address on the island.
Getting Around: The Ben Sawyer Bridge — a swing bridge that occasionally requires brief delays for boat traffic — is the sole vehicular connection to Mount Pleasant. Once on the island, bicycles and golf carts are the preferred transport for most daily errands. The island's 25-mph speed limit, flat terrain, and compact scale make cycling practical across its full length. Downtown Charleston is 20 to 30 minutes by car depending on traffic; Mount Pleasant's shopping and services are 10 to 15 minutes; Charleston International Airport is approximately 35 to 40 minutes.
Sullivan's Island has evolved organically as a residential community rather than a resort. The aesthetic leans toward weathered elegance — elevated beach houses and coastal vernacular architecture nestled among maritime forests and native vegetation, with no manicured lawns or ornamental landscaping. Strict building codes and an architectural review process prevent the overdevelopment that has diminished other barrier island communities.
The year-round population includes educated professionals, artists, writers, entrepreneurs, and retirees who have prioritized lifestyle. The culture actively resists ostentation — property values are among the highest in South Carolina, yet the community's social dynamics are defined by shared appreciation for the island rather than wealth display. Town meetings draw robust attendance, sea turtle nest monitoring draws volunteers, and the sense of stewardship over something worth protecting is genuine and pervasive.
The culinary scene is small but strong. Poe's Tavern (Edgar Allan Poe-themed pub fare, outdoor patio), Obstinate Daughter (upscale coastal Italian, regional acclaim), Home Team BBQ (Lowcountry barbecue, dog-friendly outdoor seating), and The Co-Op (seasonal small plates, reservation-required) all operate as neighborhood restaurants first. Bert's Market handles daily grocery needs. For anything beyond basics, Mount Pleasant is 10 to 15 minutes.
Evenings on Sullivan's Island are quiet by design. The few restaurants close early; there are no nightclubs. Social life centers on porch gatherings, sunset walks, and beach bonfires. For active nightlife, downtown Charleston's full restaurant and bar scene is 20 minutes away — the combination of island quiet and urban access within easy reach is one of the most consistently cited reasons residents chose Sullivan's Island over other coastal options.
Sullivan's Island consistently ranks among the most expensive residential markets in South Carolina. The fundamental driver is scarcity: the island is geographically bounded and essentially built out, with no new oceanfront land available and strict limits on development density. When properties come available — typically fewer than 20 to 30 active listings at any given time — serious buyers must be prepared to act quickly.
Property Types and Price Ranges
The most common property type is the elevated single-family home (typically 2,000 to 4,000 sq ft, 3 to 5 bedrooms) built on pilings with hurricane-resistant construction. Oceanfront properties on Atlantic Avenue represent the most coveted tier — $5M to $15M+, with exceptional estates occasionally exceeding $20M. These rarely trade and often remain in families for decades. Harbor-view properties along the island's northern edge, many with private dock access onto the Intracoastal Waterway, typically range $3M to $8M. Interior properties — still within walking or biking distance of the beach — offer relative value at $1.5M to $3M. A small number of townhomes and condominiums round out the inventory at lower price points.[1]
Most Coveted Streets and Locations
Atlantic Avenue (oceanfront) is the island's most prestigious address — unobstructed ocean views, private beach access, prices from $5M to $20M+. Harbor-view streets (I'On Avenue, portions of Raven Drive, Station streets with waterway frontage) appeal to boaters and those who want sunset views and dock access, typically $3M to $8M. The central island (Stations 18–22) provides walkable access to restaurants and beach access with interior homes from $1.5M to $3M. The western end (Stations 28–32, near Fort Moultrie) offers harbor views, proximity to historic sites, and a more secluded feel, ranging $1.8M to $6M+.
Key Buying Considerations
Every property on Sullivan's Island is in a FEMA flood zone — flood insurance is mandatory for mortgaged properties. Premiums vary significantly based on elevation relative to Base Flood Elevation; older homes built below current codes can run $10,000 to $30,000+ annually, while properly elevated structures have more manageable costs. Request an elevation certificate and flood insurance quote before making any offer. All exterior modifications and new construction require approval from the island's Board of Architectural Review. Short-term rentals are permitted but require a town license and are subject to occupancy limits and operational rules. Many properties operate on septic systems — inspection and long-term replacement costs ($15,000 to $30,000+) should be factored into due diligence. See the full guide on what to know about waterfront homes in Charleston.
Sources: [1] Katherine Cox + Co. market analysis; CTAR MLS data 2024. Price ranges reflect recent listing activity and are subject to market conditions.
Schools
Sullivan's Island has no public schools on the island. Students in the public school system attend schools in Mount Pleasant — elementary students typically at Mount Pleasant Academy or Mamie Whitesides Elementary, with Laing Middle School for middle grades and Wando High School (consistently rated among South Carolina's top public high schools) for grades 9 through 12. The school commute requires crossing the Ben Sawyer Bridge, typically 15 to 25 minutes. Private school options throughout the greater Charleston area include Porter-Gaud School, Charleston Collegiate School, Charleston Day School, and Mason Preparatory School.[VERIFY: confirm current elementary school assignment with Charleston County School District for specific addresses]
Beaches and Outdoor Spaces
Three miles of relatively uncrowded Atlantic coastline is the island's defining outdoor asset. Beach access points at the end of most Station streets make ocean access convenient from virtually any address. Dogs are permitted on beaches with seasonal restrictions (generally prohibited 10am–6pm from May 1 through September 30). Fort Moultrie's grounds — maintained by the National Park Service — provide green space, walking routes, and harbor views in addition to historical interpretation. The island's flat terrain and 25-mph speed limit make the full street network functional for cycling and jogging year-round. Kayaking and paddleboarding from harbor-side locations provide access to the Intracoastal Waterway. For offshore and harbor boating, see the Charleston boating and marinas guide.
History and Landmarks
Fort Moultrie (National Park Service) at the island's western end is the primary historic landmark — a series of coastal fortifications spanning over 200 years from the Revolutionary War battle of 1776 through World War II. Open daily; free admission. The Sullivan's Island Lighthouse (1962, triangular design) serves as a navigational landmark visible throughout the island. The Edgar Allan Poe Library commemorates the writer's posting at Fort Moultrie in the 1820s — the experience informed several works including "The Gold-Bug," set on Sullivan's Island. Breach Inlet at the island's eastern end offers exceptional tidal dynamics, surfing when conditions allow, and access to undeveloped barrier beach areas. Civil War-era batteries and bunkers are scattered throughout the island and incorporated into several residential properties.
Who Sullivan's Island Is For
Sullivan's Island is not for everyone — and its residents would have it no other way. The island attracts buyers who have lived enough life to know what matters: nature over convenience, community over commerce, preservation over growth. Ideal for nature-focused families, remote workers who want ocean access, writers and creative professionals drawn by the island's literary history and contemplative pace, boating enthusiasts who want harbor and ICW access, and retirees seeking genuine coastal community rather than resort-adjacent development. The limited commercial amenities, school commute across the bridge, and significant flood insurance costs are genuine trade-offs that should be weighed honestly. For buyers who have weighed them and still want to proceed, there is no better guide to the island's real estate market than someone who has worked transactions here for decades.
Not Sure If Sullivan's Island Is Right for You?
It's a specific choice — and the right one for the right buyer. If you're weighing Sullivan's Island against Isle of Palms or the broader waterfront market, read the guide on choosing between Charleston's coastal neighborhoods, or see all waterfront neighborhoods in Charleston side by side.
Explore All NeighborhoodsRelated Reading
Sullivan's Island, SC has the ZIP code 29482 and is located in Charleston County. The island is accessible via the Ben Sawyer Bridge from Mount Pleasant and is approximately 6 miles from downtown Charleston.
Sullivan's Island is approximately 6 miles from downtown Charleston. The drive via the Ben Sawyer Bridge typically takes 20 minutes without traffic. During peak summer weekends and rush hours, the bridge crossing can add 10 to 20 minutes. Mount Pleasant's shopping, restaurants, and services are 10 to 15 minutes from the island. Charleston International Airport is approximately 35 to 40 minutes.
Home prices on Sullivan's Island range from approximately $1.5 million for interior properties (not directly on ocean or harbor) to $5 million to $15 million+ for oceanfront homes on Atlantic Avenue, with exceptional estates occasionally exceeding $20 million. Harbor-view properties with dock access typically range from $3 million to $8 million. The median sale price for the island as a whole runs approximately $2.5 million to $3.5 million. Inventory is extremely limited — typically fewer than 20 to 30 active listings at any time — and desirable properties often sell quickly with multiple offers.
Sullivan's Island is in the Charleston County School District. The island has no public schools of its own. Students attend schools in Mount Pleasant — Wando High School serves high school students and is consistently rated among South Carolina's top public high schools. Confirm current elementary and middle school assignments with Charleston County School District for specific addresses, as zone assignments can change.
Sullivan's Island is consistently rated as one of the highest quality-of-life communities in South Carolina — uncrowded beaches, no chain restaurants or hotels, a tight-knit year-round population of approximately 1,700 to 2,000, and 6 miles from downtown Charleston. It is best suited to buyers who prioritize natural setting, community character, and privacy over commercial convenience. The trade-offs are real: flood insurance is mandatory and can be substantial for older homes, all school commutes require crossing the bridge, grocery options on the island are limited, and home prices start above $1.5 million. For buyers who have evaluated these factors and want a genuine barrier island lifestyle near a world-class city, Sullivan's Island has very few equivalents.
Work With Katherine Cox + Co.
Katherine Cox has worked with buyers and sellers across Sullivan's Island for decades. She understands the island's micro-markets — which streets have the best lot sizes, which properties have elevation certificates that keep flood insurance manageable, and which off-market opportunities may align with your criteria before they ever appear in the MLS. If Sullivan's Island is your target, the right conversation to have is with someone who knows it at that level.
Contact(843) 568-3193 · Email Katherine
1127 Queensborough Blvd, Ste. 103, Mount Pleasant, SC 29464 · Mon–Fri 9am–5pm
There's plenty to do around Sullivan's Island, including shopping, dining, nightlife, parks, and more. Data provided by Walk Score and Yelp.
Explore popular things to do in the area, including Heights Meat Market, Wine Shop Old Village, and Holy City Tennis Shop.
| Name | Category | Distance | Reviews |
Ratings by
Yelp
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|---|---|---|---|---|
| Dining | 3.39 miles | 6 reviews | 5/5 stars | |
| Dining | 2.67 miles | 10 reviews | 5/5 stars | |
| Shopping | 3.81 miles | 5 reviews | 5/5 stars | |
| Shopping | 2.04 miles | 27 reviews | 5/5 stars | |
| Active | 2.94 miles | 21 reviews | 5/5 stars | |
| Active | 3.95 miles | 8 reviews | 5/5 stars | |
| Active | 3.05 miles | 5 reviews | 5/5 stars | |
| Active | 4.26 miles | 18 reviews | 5/5 stars | |
| Beauty | 3.73 miles | 6 reviews | 5/5 stars | |
| Beauty | 3.76 miles | 8 reviews | 5/5 stars | |
| Beauty | 3.95 miles | 10 reviews | 5/5 stars | |
| Beauty | 3.63 miles | 20 reviews | 5/5 stars | |
| Beauty | 2.51 miles | 20 reviews | 5/5 stars | |
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Sullivan's Island has 817 households, with an average household size of 2.6. Data provided by the U.S. Census Bureau. Here’s what the people living in Sullivan's Island do for work — and how long it takes them to get there. Data provided by the U.S. Census Bureau. 2,127 people call Sullivan's Island home. The population density is 851.47 and the largest age group is Data provided by the U.S. Census Bureau.
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My roots are grounded in The Lowcountry and I am committed to educating future buyers on every aspect of life here in Charleston. I am passionate about my job and dedicated to helping buyers and sellers get the most value out of my services!
