National Register of Historic Places listings in Hardin County, Ohio

This is a list of the National Register of Historic Places listings in Hardin County, Ohio.

It is intended to be a complete list of the properties and districts on the National Register of Historic Places in Hardin County, Ohio, United States. The locations of National Register properties and districts for which the latitude and longitude coordinates are included below, may be seen in a Google map.

There are 7 properties and districts listed on the National Register in the county.

Current listings

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