page_title: National Register of Historic Places listings in Illinois
hierarchical_section_title: National Register of Historic Places listings in Illinois
caption_attribution_description: Dennis Otte Round Barn, near Eleroy, Illinois, USA, off of U.S. Route 20.
context_page_description: This is a list of properties and districts in Illinois that are on the National Register of Historic Places. There are over 1,800 in total. Of these, 85 are National Historic Landmarks. There are listings in all of the state's 102 counties.
  This National Park Service list is complete through NPS recent listings posted July 17, 2020.
context_section_description: This is a list of properties and districts in Illinois that are on the National Register of Historic Places. There are over 1,800 in total. Of these, 85 are National Historic Landmarks. There are listings in all of the state's 102 counties.
  This National Park Service list is complete through NPS recent listings posted July 17, 2020.
caption: Dennis Otte Round Barn, Stephenson County
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