Charleston County, South Carolina

Charleston County profile, demographic data, and geographic information.

Local Government & Public Administration

Authoritative general-purpose local government units serving this area U.S. Census Bureau GUS (2026) / GMAF

Government Unit	Unit Type	Jurisdiction Role	Contact / Address
COUNTY OF CHARLESTON GUS Population: 431,001 (2024) ID: 174852	County	Official County Government	Contact: FINANCE DIRECTOR 4045 BRIDGE VIEW DR, STE A225, NORTH CHARLESTON SC 29405-7464
CITY OF CHARLESTON GUS Population: 157,665 (2024) ID: 174889	Municipal	Municipal Government Within County	Contact: PLANNER 2 GEORGE ST, STE 3100, CHARLESTON SC 29401
CITY OF NORTH CHARLESTON GUS Population: 126,005 (2024) ID: 174894	Municipal	Municipal Government Within County	Contact: DEPUTY DIRECTOR PLANNING DEPARTMENT PO BOX 190016, NORTH CHARLESTON SC 29419-9016
TOWN OF MOUNT PLEASANT GUS Population: 95,604 (2024) ID: 112863	Municipal	Municipal Government Within County	Contact: DEPUTY DIRECTOR ADMINISTRATIVE SERVI 100 ANN EDWARDS LN, MOUNT PLEASANT SC 29464-5616
TOWN OF JAMES ISLAND GUS Population: 12,451 (2024) ID: 140191	Municipal	Municipal Government Within County	Contact: CLERK PO BOX 12240, CHARLESTON SC 29422-2240
TOWN OF HOLLYWOOD GUS Population: 5,503 (2024) ID: 209439	Municipal	Municipal Government Within County	Contact: MAYOR PO BOX 519, HOLLYWOOD SC 29449-0519
CITY OF ISLE OF PALMS GUS Population: 4,377 (2024) ID: 184063	Municipal	Municipal Government Within County	Contact: CITY ADMINISTRATOR PO BOX 508, ISLE OF PALMS SC 29451-0508
TOWN OF RAVENEL GUS Population: 2,688 (2024) ID: 205354	Municipal	Municipal Government Within County	Contact: SPECIAL PROJECTS COORDINATOR 5962 HIGHWAY 165, STE 100, RAVENEL SC 29470-5514
TOWN OF SEABROOK ISLAND GUS Population: 2,135 (2024) ID: 134430	Municipal	Municipal Government Within County	Contact: TOWN ADMINISTRATOR 2001 SEABROOK ISLAND RD, JOHNS ISLAND SC 29455-6321
CITY OF FOLLY BEACH GUS Population: 2,084 (2024) ID: 134431	Municipal	Municipal Government Within County	Contact: ZONING ADMIN PO BOX 48, FOLLY BEACH SC 29439-0048
TOWN OF KIAWAH ISLAND GUS Population: 2,003 (2024) ID: 202547	Municipal	Municipal Government Within County	Contact: TOWN TREASURER 21 BEACHWALKER DR, KIAWAH ISLAND SC 29455-5652
TOWN OF SULLIVAN'S ISLAND GUS Population: 1,948 (2024) ID: 174893	Municipal	Municipal Government Within County	Contact: ASST TO TOWN ADMINISTRATOR PO BOX 427, SULLIVANS ISLAND SC 29482-0427
TOWN OF AWENDAW GUS Population: 1,472 (2024) ID: 209440	Municipal	Municipal Government Within County	Contact: MAYOR PO BOX 520, AWENDAW SC 29429-0520
TOWN OF MEGGETT GUS Population: 1,453 (2024) ID: 194040	Municipal	Municipal Government Within County	Contact: ADMINISTRATOR 4776 HIGHWAY 165, MEGGETT SC 29449-6148
TOWN OF LINCOLNVILLE GUS Population: 1,212 (2024) ID: 174892	Municipal	Municipal Government Within County	Contact: MAYOR PO BOX 536, LINCOLNVILLE SC 29485
TOWN OF MCCLELLANVILLE GUS Population: 626 (2024) ID: 174890	Municipal	Municipal Government Within County	Contact: TOWN ADMINISTRATOR 405 PINCKNEY ST, MC CLELLANVILLE SC 29458-9723
TOWN OF ROCKVILLE GUS Population: 141 (2024) ID: 174891	Municipal	Municipal Government Within County	Contact: MAYOR PO BOX 9, WADMALAW ISLAND SC 29487-0009