Zip Area Code

Johns Island, South Carolina

Johns Island, South Carolina, in Charleston County, has ZIP codes 29455 and 29457 and area code 843, with 854 as an overlay.

ZIP codes
29455, 29457
Area codes
843, 854
Time zone
Eastern Time
Coordinates
32.7924, -80.1081

ZIP codes in Johns Island

ZIP codePost officeCountyArea codes
29455Johns IslandCharleston County843, 854
29457*Johns IslandCharleston County843, 854

* No mapped delivery area: P.O. boxes or a single organization. Area codes are those of the nearest ZIP code area.

Area codes for Johns Island

  • Area code 843

    In service since March 22, 1998. Shares its area with 854. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

  • Area code 854

    In service since October 19, 2015. Shares its area with 843. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

Area codes here are matched from telephone rate centers, so a place near a boundary can have local numbers from either side of it.

Time zone

Johns Island is in the Eastern Time zone.

Towns near Johns Island