Indiana - Area of significance: Commerce
| Adams Mill |
| Akron Historic District |
| Alameda |
| Albion Courthouse Square Historic District |
| Alexandra |
| Ambassador |
| American Trust and Savings Bank (Indiana Bank) |
| Anderson Bank Building |
| Anderson Downtown Historic District |
| Angola Commercial Historic District |
| Architects and Builders Building |
| Argos Downtown Historic District |
| Aston Inn |
| Attica Downtown Historic District |
| Auto Hotel Building |
| Bailly, Joseph, Homestead |
| Bainbridge Historic District |
| Baker |
| Barrett's Britz Building |
| Beck's Mill |
| Bedford Courthouse Square Historic District |
| Bergan, W.N.-J.C. Lauber Co. Building |
| Bernardin-Johnson House |
| Bickel,Emmanuel C., House |
| Bitterman Building |
| Blacherne |
| Blackstone House and Martinsville Telephone Company Building |
| Bloomington West Side Historic District |
| Bluffton Commercial Historic District |
| Boonville Public Square Historic District |
| Bourbon Commercial Historic District |
| Boyce Block |
| Brackett, Lyman M., House |
| Braxtan, Thomas Newby, House |
| Brazil Downtown Historic District |
| Bremen Commercial Historic District |
| Bridgeton Historic District |
| Brookville Historic District |
| Brownell Block/Senger Dry Goods Company Building |
| Brown, John, Stone Warehouse |
| Brownstown Courthouse Square Historic District |
| Building at 23-27 S. Sixth Street |
| Building at 510-516 Ohio Street |
| Building at 810 Wabash Avenue |
| Burris House and Potawatomi Spring |
| Burton |
| Buschmann, William, Block |
| Cambridge City Historic District |
| Camden Masonic Temple |
| Canal House |
| Cannelton Historic District |
| Carnahan, Magnus J., House |
| Carr's Hall |
| Cathcart |
| Centennial Neighborhood District |
| Centerville Historic District |
| Chesterton Commercial Historic District |
| Citizens' Trust Company Building |
| City Market |
| Clinton Downtown Historic District |
| Cloverdale Historic District |
| Coca-Cola Bottling Company Plant |
| Cole, James Omar, House |
| Colonial |
| Colonial Gardens Commercial Historic District |
| Colored Knights of Pythias Castle Hall |
| Columbia City Historic District |
| Columbus Historic District |
| Conklin-Montgomery House |
| Conner's Bookstore |
| Connersville Downtown Historic District |
| Converse Commercial Historic District |
| Coppes, Frank and Katharine, House |
| Courthouse Historic District |
| Courthouse Square Historic District |
| Covington Courthouse Square Historic District |
| Crawfordsville Commercial Historic District |
| Cromwell Historic District |
| Crown Point Courthouse Square Historic District |
| Culbertson Mansion |
| Culver Commercial Historic District |
| Danville Courthouse Square Historic District |
| Dartmouth |
| Debs, Eugene V., House |
| Delaware Court |
| Delaware Flats |
| Delphi Courthouse Square Historic District |
| de Richardville, Chief Jean-Baptiste, House |
| Devonshire |
| Dixie Garage |
| Downtown Auburn Historic District |
| Downtown Aurora Historic District |
| Downtown Butler Historic District |
| Downtown Lafayette Historic District |
| Downtown LaPorte Historic District |
| Downtown Nappanee Historic District |
| Downtown Wabash Historic District |
| Durbin Hotel |
| East Spring Street Historic District |
| Edinburgh Commercial Historic District |
Data from United States Park Service and Wikidata
