Zip Area Code

Smith Island, Maryland

No ZIP code carries the name of Smith Island, Maryland, in Somerset County; the nearest ZIP codes are 21824 and 21866, in area code 410, with overlays 443 and 667.

Nearest ZIP
21824, 21866
Area codes
410, 443, 667
Time zone
Eastern Time
Coordinates
37.9772, -76.0288

Nearest ZIP codes to Smith Island

These are the ZIP codes nearest to Smith Island, each listed with the post office it is named after.

ZIP codePost officeCountyArea codes
21824EwellSomerset County410, 443, 667
21866TylertonSomerset County410, 443, 667

Area codes for Smith Island

  • Area code 410

    In service since October 6, 1991. Shares its area with 443 and 667. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

  • Area code 443

    In service since June 1, 1997. Shares its area with 410 and 667. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

  • Area code 667

    In service since March 24, 2012. Shares its area with 410 and 443. 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

Smith Island is in the Eastern Time zone.

Towns near Smith Island