National Register of Historic Places listings in Illinois

This is a list of properties and districts in Illinois that are on the National Register of Historic Places. There are over 1,900 in total. Of these, 85 are National Historic Landmarks. There are listings in all of the state's 102 counties.

Bond County

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Boone County

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Brown County

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Former listing

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Cass County

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Former listing

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Christian County

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Clay County

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Clinton County

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Cumberland County

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DeWitt County

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Douglas County

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Former listing

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Edwards County

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Effingham County

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Fayette County

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Former listings

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Ford County

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Franklin County

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Hamilton County

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Hardin County

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Henderson County

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Iroquois County

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Jasper County

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Jefferson County

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Johnson County

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Lawrence County

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Marshall County

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Mason County

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Massac County

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Former listing

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Menard County

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Moultrie County

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Perry County

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Piatt County

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Pope County

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Pulaski County

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Putnam County

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Richland County

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Saline County

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Schuyler County

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Scott County

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Shelby County

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Stark County

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Wabash County

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Washington County

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Wayne County

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Williamson County

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