ZIP Codes Box

Hardin County, Ohio ZIP codes

10ZIP codes
10Cities and towns
31,646People in ZIP areas
220, 326, 419Area codes

Hardin County is in Ohio and the Eastern Time zone. ZIP codes don’t follow county lines exactly, so a ZIP code listed here can reach into a neighboring county.

All ZIP codes in Hardin County

ZIP codeCityTypePopulationMedian income
43326KentonStandard12,573$63,785
43340Mount VictoryStandard2,103$72,446
43345RidgewayStandard666$90,821
43346RoundheadPO Box only238$57,130
45810AdaStandard7,449$63,451
45812AlgerStandard2,027$44,045
45835DolaStandard449$76,042
45836DunkirkStandard1,573$56,250
45843ForestStandard4,184$71,541
45859Mc GuffeyPO Box only384$51,250

Cities and towns in Hardin County

Area codes in Hardin County

Questions

How many ZIP codes are in Hardin County, OH?
Hardin County has 10 ZIP codes, 8 of them standard ZIP codes for street addresses.
What cities are in Hardin County?
Hardin County ZIP codes cover Ada, Alger, Dola, Dunkirk, Forest, Kenton, Mc Guffey and Mount Victory and 2 other places.
What area code is Hardin County, OH?
Hardin County uses area codes 220, 326, 419, 567, 740 and 937.
What time zone is Hardin County in?
Hardin County is in Eastern Time.

Other Ohio counties