National Register of Historic Places listings in Lake County, Indiana

This is a list of the National Register of Historic Places listings in Lake County, Indiana.

This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Lake County, Indiana, United States. Latitude and longitude coordinates are provided for many National Register properties and districts; these locations may be seen together in a map.

There are 82 properties and districts listed on the National Register in the county. Another 2 properties were once listed but have been removed.

Properties and districts located in incorporated areas display the name of the municipality, while properties and districts in unincorporated areas display the name of their civil township. Properties and districts split between multiple jurisdictions display the names of all jurisdictions.

Current listings

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Former listings

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