Indiana - Area of significance: Agriculture
| Aikens, David, House |
| Allen, Lemuel, Farm |
| Archeological Sites 12Ma648 and 12Ma649 |
| Arnold, Dr. John, Farm |
| Baum-Shaeffer Farm |
| Beard-Kerr Farm |
| Beatty-Trimpe Farm |
| Beck's Mill |
| Beechwood (Isaac Kinsey House) |
| Blue River Quaker Settlement Rural Historic District |
| Bluff Road Historic District |
| Blume, Martin, Jr., Farm |
| Bottorff-McCulloch Farm |
| Breezy Point Farm Historic District |
| Brier, Andrew, House |
| Brock, Pryor Farmstead |
| Buckley Homestead |
| Cedar Point Farm |
| Chenoweth-Coulter Farm |
| Colman-Doctor Farm |
| Colter, Ben, Polygonal Barn |
| Cornell, William, Homestead |
| Daugherty, Elnora, Farm |
| Daugherty, James and Annetta, House and Barn |
| Deer Creek Valley Rural Historic District |
| Dekalb County Home and Barn |
| Delphi Lime Kilns |
| Dublin Friends Meeting House |
| Eaglefield Place |
| Eliason Farm |
| Farmers Club |
| Fisher, William, Polygonal Barn |
| Floral Hall |
| Forrester, James and Lavinia, Farmstead |
| Gaar, Abram, House and Farm |
| Gant, William R., Farm |
| Grassyfork Fisheries Farm No. 1 |
| Griffin, Cornish, Round Barn |
| Hagemann, Frederick and Augusta, Farm |
| Haimbaugh, John, Round Barn |
| Halderman-Van Buskirk Farmstead |
| Hall Farm |
| Harcourt, James F., House |
| Heagy, D.W., Farm |
| Helton-Mayo Farm |
| Hesler, Clinton F., Farm |
| Hill, William, Polygonal Barn |
| Hinkle-Garton Farmstead |
| Hofherr, Martin, Farm |
| Hollingsworth House |
| Jenkins, Israel, House |
| Johnny Appleseed Memorial Park |
| Johnson-Denny House |
| Jones, Col. William, House |
| Landers, Franklin-Black and Adams Farm |
| Lebanon Courthouse Square Historic District |
| Leedy, Bert, Round Barn |
| Lincoln Boyhood National Memorial |
| Littleton, Frank, Round Barn |
| Manche, Maurice W., Farmstead |
| Mansfield Roller Mill |
| Maple Grove Road Rural Historic District |
| Maplelawn Farmstead |
| Marr, James, House and Farm |
| McCall Family Farmstead |
| McHaffie, Melville F., Farm |
| Moffett-Ralston House |
| Mont Clair |
| Morehouse, Levi and Lucy, Farm |
| Newby, Micah, House |
| Newsom-Marr Farm |
| Nicholson, Andrew, Farmstead |
| Norris Farm-Maxinkuckee Orchard |
| Oliver, Joseph D., House |
| Orr, Robert, Polygonal Barn |
| Parsons, A.A., Farmstead |
| Pleak, Strauther, Round Barn |
| Porter, Gene Stratton, Cabin |
| Puterbaugh, Joseph and Sarah, Farm |
| Raber, Fred and Minnie, Farm |
| Ramsay-Fox Round Barn and Farm |
| Ranck, Thomas, Round Barn |
| Rankin, Rebecca, Round Barn |
| Reeves, Jabez, Farmstead |
| Ridgeway, Marion, Polygonal Barn |
| Rohrer, Joseph J., Farm |
| Rudicel, George, Polygonal Barn |
| Schrage, Henry and Caroline, House |
| Senour, Frank, Round Barn |
| Shafer, Joseph, Farm |
| Simpson Nursery Historic District |
| Smith, Samuel G., Farm |
| Stahly-Nissley-Kuhns Farm |
| Stallbohm Barn-Kaske House |
| Stipp-Bender Farm |
| Stockdale Mill |
| Stout, Daniel, House |
| St. Patrick's Farm |
| Sults-Quivey-Hartman Polygonal Barn and Farm |
| Tate-Tatum Farm |
Data from United States Park Service and Wikidata
