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Zip Code 29455 — Johns Island, SC

ZIP Code 29455 is associated with Johns Island, SC, in Charleston County. The listed population estimate is 27,576; estimated density is 106.2 people per square mile. Among records with population estimates, it ranks #8 of 25 in Charleston County and #66 of 422 in SC.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (32.685810, -80.086040)

Data MetricLocal Statistic
Postal / Zip Code29455
Primary CityJohns Island
State / ProvinceSC
CountyCharleston
Total Population27,576
Population Density106.2 people/sq mi
TimezoneAmerica/New_York

How 29455 Compares

MetricZIP 29455Charleston County recordsSC records
Population estimate27,576444,725 (sum)5,296,225 (sum)
Population Density106.2 /sq mi----
County population rank#8 of 25----
State population rank#66 of 422----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in SC

ZIP CodeCityDistancePopulation estimate
ZIP 29487Wadmalaw Island6.1 mi2,703
ZIP 29412Charleston8.0 mi39,256
ZIP 29439Folly Beach9.2 mi1,125
ZIP 29407Charleston9.3 mi36,706
ZIP 29425Charleston10.5 miN/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →