Charleston County · South Carolina
Charleston, SC area codes and time zone
Quick answer
Charleston is served by area codes 843, 854, keeps EST time (GMT-5), and sits in county FIPS 45019.
- Area codes
- 843 · 854Within 25 miles of the city centre
- Time zone
- ESTAmerica/New_York
- UTC offset
- GMT-5EDT in summer (UTCGMT-4)
- County FIPS
- 45019Charleston County
Dialling from and to Charleston
What this means when you pick up the phone.
Because more than one code covers this area, ten-digit dialling applies for local calls: area code plus number, every time. From abroad, dial +1 then the ten digits.
How Charleston came to have several area codes
Why one city can carry several codes.
Area codes are assigned to geography, then exhausted as demand grows. Charleston — population about 155k — is covered by codes 843, 854, drawn from within 25 miles of the city centre. Because these 2 codes serve the same footprint, they are overlays: the number pool ran low and a new code was layered on top rather than splitting the city apart. All ten digits are required for every local call.
More Charleston data
Other Charleston datasets on this site.
- Charleston population and income
- Charleston sales tax rate
- Charleston property tax
- Charleston cost of living
- Charleston home values and rent
- Charleston crime rates
- Charleston public schools
- Charleston weather normals
- Charleston commute times
Statewide: South Carolina cities · South Carolina ZIP codes · South Carolina sales tax · South Carolina counties