Zip Code 29403 — Charleston, SC

ZIP Code 29403 is associated with Charleston, SC, in Charleston County. The listed population estimate is 22,533; estimated density is 1,611.7 people per square mile. Among records with population estimates, it ranks #11 of 25 in Charleston County and #86 of 422 in SC.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (32.803470, -79.945610)

Data MetricLocal Statistic
Postal / Zip Code29403
Primary CityCharleston
State / ProvinceSC
CountyCharleston
Total Population22,533
Population Density1,611.7 people/sq mi
TimezoneAmerica/New_York

How 29403 Compares

MetricZIP 29403Charleston County recordsSC records
Population estimate22,533444,725 (sum)5,296,225 (sum)
Population Density1,611.7 /sq mi----
County population rank#11 of 25----
State population rank#86 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 29409Charleston1.0 mi2,056
ZIP 29425Charleston1.3 miN/A
ZIP 29424Charleston1.4 mi1,243
ZIP 29401Charleston1.8 mi9,339
ZIP 29407Charleston3.1 mi36,706

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 →