Johnston, Illinois

Nearest ZIP codes to Johnston

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

Area codes for Johnston

• Area code 618

  In service since 1947. Shares its area with 730. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

• Area code 730

  In service since July 7, 2023. Shares its area with 618. 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

Johnston is in the Central Time zone.

Towns near Johnston

• Johnston City0.8 km (0.5 mi)
• Whiteash4.1 km (2.5 mi)
• Spillertown6.2 km (3.9 mi)
• Freeman Spur7.5 km (4.7 mi)
• Herrin8.5 km (5.3 mi)
• West Frankfort8.5 km (5.3 mi)
• Energy10 km (6.2 mi)
• Marion10.6 km (6.6 mi)