Zip Code 29455
Johns Island, South Carolina — Charleston County
📍 ZIP code 29455 is in Johns Island, Charleston County, South Carolina.
ZIP code 29455 is located in Johns Island, Charleston County, South Carolina. It is a zip code in the Eastern (EST/EDT) Time Zone with an estimated population of 26,308. The area code for ZIP code 29455 is 843.
Quick Answer
Zip code 29455 is in Johns Island, South Carolina (Charleston County). It has a population of 26,308, median household income of $117,422, and median home value of $499,500.
Population
26,308
Income
$117,422
Home Value
$499,500
Climate
88°F / 44°F
About Zip Code 29455
Zip code 29455 is located in Johns Island, South Carolina, within Charleston County. Home to approximately 26,308 residents, this area sits at an elevation of 2 ft and falls within the Eastern (EST/EDT) timezone. The local area code is 843.
The median household income is $117,422 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $499,500, and the cost of living index is 157 (57% above the national average of 100).
Summers average a high of 88°F while winters drop to 44°F. The area receives about 44 in of rain and 2 in of snow annually. The zip code covers 107.4 square miles of land area and 11 square miles of water.
Key Statistics
26,308
$117,422
$499,500
Eastern (EST/EDT)
843
2 ft
107.4 sq mi
51.6
17,196
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Compare With Nearby Zip Codes
| Metric | 29455 | 29439 | 29412 | 29487 | 29401 | 29407 |
|---|---|---|---|---|---|---|
| City | Johns Island, SC | Folly Beach, SC | Charleston, SC | Wadmalaw Island, SC | Charleston, SC | Charleston, SC |
| Population | 26,308 | 869 | 40,495 | 2,702 | 9,210 | 36,640 |
| Median Income | $117,422 | $99,766 | $99,443 | $93,480 | $90,074 | $80,568 |
| Home Value | $499,500 | $1,004,300 | $458,000 | $442,100 | $1,165,900 | $407,300 |
| Cost of Living | 157 | 183 | 143 | 110 | 250 | 125 |
| Median Age | 51.6 | 62.3 | 40 | 48.8 | 34.4 | 37.4 |
Cost of Living
100 = National Average. Johns Island's cost of living is 57% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
4.3x
Demographics
Zip code 29455 has a population of 26,308 people with a median age of 51.6. There are 17,196 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Johns Island (29455) population trend from 2010 to 2024
↑ 108.1%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
88°F
44°F
44 in
2 in
Johns Island experiences warm summers with average highs around 88°F. Winters are mild with lows averaging 44°F. The area receives about 2 in of snow per year.
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Housing & Economy
Median Home Value
$499,500
Median Household Income
$117,422
With 17,196 housing units across 107.4 square miles, 29455 has a housing density of 160 units per square mile. The home price-to-income ratio is 4.3x.
Location & Geography
Latitude
32.6247°
Longitude
-80.0406°
Land Area
107.4 sq mi
Water Area
11 sq mi
Nearby Zip Codes
Zip codes closest to 29455 (Johns Island, SC) with distances:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 29455's $117,422. A way to compare Johns Island to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 29455 (Johns Island, SC). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Johns Island, South Carolina?
Johns Island, South Carolina uses zip code 29455.
What county is zip code 29455 in?
Zip code 29455 is located in Charleston County, South Carolina.
What is the population of zip code 29455?
The population of zip code 29455 is 26,308 with a median age of 51.6.
Is 29455 in Johns Island, South Carolina?
Yes, zip code 29455 is in Johns Island, Charleston County, South Carolina. The area code is 843.
Frequently Asked Questions
What city is zip code 29455 in?
Zip code 29455 is in Johns Island, South Carolina. It is part of Charleston County and uses the Eastern (EST/EDT) timezone.
What is zip code 29455?
Zip code 29455 is a U.S. postal code in Johns Island, South Carolina (Charleston County). It has a population of 26,308 and covers 107.4 square miles.
What is the population of zip code 29455?
The population of zip code 29455 (Johns Island, SC) is 26,308 with a median age of 51.6. There are approximately 17,196 housing units in this area.
What is the median income in zip code 29455?
The median household income in zip code 29455 (Johns Island, SC) is $117,422 per year. The cost of living index is 157 (100 = national average).
What is the average home price in zip code 29455?
The median home value in zip code 29455 (Johns Island, SC) is $499,500. The cost of living index is 157 compared to the national average of 100.
What county is zip code 29455 in?
Zip code 29455 is located in Charleston County, South Carolina. The primary city is Johns Island.
What is the area code for zip code 29455?
Zip code 29455 in Johns Island, SC uses area code 843. It is located in the Eastern (EST/EDT) timezone.
Is zip code 29455 a good place to live?
Zip code 29455 (Johns Island, SC) has a cost of living index of 157 (100 = national average), a median household income of $117,422, and median home values of $499,500. The median age is 51.6. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 29455?
The cost of living index for zip code 29455 (Johns Island, SC) is 157, where 100 represents the national average. This area is above the national average. Median home value: $499,500.
What schools serve zip code 29455?
Zip code 29455 in Johns Island, South Carolina is served by the local school district of Charleston County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.