Union, Ohio

Nearest ZIP codes to Union

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

Area codes for Union

• Area code 937

  In service since September 28, 1996. Shares its area with 326. Local calls are dialed with ten digits.

• Area code 326

  In service since March 8, 2020. Shares its area with 937. Local calls are dialed with ten digits.

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

Union is in the Eastern Time zone.

Towns near Union

• Englewood4.7 km (2.9 mi)
• West Milton5.8 km (3.6 mi)
• Clayton7 km (4.3 mi)
• Vandalia8 km (5.0 mi)
• Phillipsburg9.3 km (5.8 mi)
• Ludlow Falls9.6 km (6.0 mi)
• Tipp11.2 km (7.0 mi)
• Tipp City11.5 km (7.1 mi)