Zip Area Code

Ironton, Ohio

Ironton, Ohio, in Lawrence County, has ZIP code 45638 and area code 740, with 220 as an overlay.

ZIP code
45638
Area codes
740, 220
State
Ohio
Time zone
Eastern Time
Coordinates
38.5294, -82.6654

ZIP codes in Ironton

ZIP codePost officeCountyArea codes
45638IrontonLawrence County740, 220

Area codes for Ironton

  • Area code 740

    In service since December 6, 1997. Shares its area with 220. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

  • Area code 220

    In service since April 22, 2015. Shares its area with 740. 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

Ironton is in the Eastern Time zone.

Towns near Ironton