Johns Island, SC 29455 ZIP Code Profile


ZIP Code 29455: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Johns Island, SC 29455

Acceptable Alternative
Kiawah Island, SC 29455
Seabrook Isl, SC 29455
Seabrook Island, SC 29455

  • ZIP Code Type: STANDARD
  • County: Charleston County
  • Centroid: Latitude 32.691, Longitude -80.091
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 529
  • PO Box Addresses: 0
  • Residential Addresses: 13,437
    • Multi-Family Addresses: 813
    • Single Family Addresses: 12,624

The ZIP Code maps and database are updated 4 times per year.
Database updated: August 1, 2018, Maps updated: August 1, 2018.

Jump to... (On This Page!)
  1. 29455 2018 Demographic Data
  2. Growth Rates for 29455 (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. South Carolina Research Tools (Easy Tools & Current Data)
  3. South Carolina Data Comparison Tool - 2018 Demographics

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Boundary Maps, Demographic Data, School Zones Review maps and data for the neighborhood, city, county, ZIP Code, and school zone. July 1, 2018, data includes home values, household income, percentage of homes owned, rented or vacant, etc.


Johns Island, SC 29455 Data & Demographics (As of July 1, 2018)


Total Population 24,531
Population in Households 24,400
Population in Familes 19,459
Population in Group Qrtrs 131
Population Density2 215
Diversity Index3 58


Median Household Income $70,799
Average Household Income $108,270
Per Capita Income $44,713


Total Housing Units 15,012 (100%)
Owner Occupied HU 7,754 (51.7%)
Renter Occupied HU 2,345 (15.6%)
Vacant Housing Units 4,913 (32.7%)
Median Home Value $343,434
Average Home Value $595,728


Total Households 10,099
Average Household Size 2.42
Family Households 6,722
Average Family Size 3
  1. Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2018 2018-2023
Population 2.73% 2.25%
Households 2.68% 2.23%
Families 2.39% 2.05%
Median Household Income   2.81%
Per Capita Income   2.51%

Johns Island, SC 29455 - Peer Comparisons by Rank and Percentile

The table below compares 29455 to the other 393 ZIP Codes in South Carolina by rank and percentile using July 1, 2018 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 76 81st
Population Density # 135 66th
Diversity Index # 62 84th
Median Household Income # 23 94th
Per Capita Income # 14 97th

Additional comparisons and rankings can be made with a VERY EASY TO USE South Carolina Census Data Comparison Tool.

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South Carolina Census Data Comparison Tool

Compare South Carolina July 1, 2018 Data
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