All - Architectural style - Greek Revival architecture
| Killgore House |
| Kimball, W.W., House |
| Kimbrough-Hehr House |
| Kinderhook Village District |
| King House |
| King-Phillips-Deibel House |
| Kings Highway North Historic District |
| Kingston Methodist Church |
| Kingston Presbyterian Church |
| King Store and Homestead |
| King William Historic District |
| Kinney, A., House |
| Kinney, Eli, House |
| Kinnickinnic Church |
| Kinston Baptist-White Rock Presbyterian Church |
| Kinyon, Orrin, and Roxanne Fairman, House |
| Kirby House |
| Kirby, William R., Sr., House |
| Kirkbride House |
| Kirkpatrick Dental Office |
| Kirkwood |
| Kirkwood, Joseph, House |
| Kirtley, Rev. Robert E., House |
| Kittredge, Alvah, House |
| Kittrell-Dail House |
| Kleinpeter House |
| Knapp, William, House |
| Knight, J. B., House |
| Knollwood |
| Knowlton, Jabez, Store |
| Knox County Courthouse |
| Knox County Courthouse and Hall of Records |
| Koehne-Poast Farm |
| Koerner, Gustave, House |
| Koon, Henry, House |
| Koontz House |
| Koontz, John F. and Malissa, House |
| Kotz, Francis, Farm |
| Kreienkamp Store |
| Kvindherred Lutheran Church, School and Cemetery |
| Kyle House |
| LaBorde House, Store and Hotel |
| Lacy-Van Vleet House |
| Ladd Farmhouse |
| Ladies' Literary Club Building |
| Lafayette Methodist Church |
| LaGrange |
| LaGrange Terrace |
| Laidley-Summers-Quarrier House |
| Lainhart Farm Complex and Dutch Barn |
| Lairdland Farm House |
| Lake County Courthouse |
| Lake O'Woods |
| Lakeport Plantation |
| Lakewood |
| Lamar-Calder House |
| Lamar, Lucius Quintus Cincinnatus, House |
| Lamb, James H., House |
| Lamb, Thomas, House |
| Lamm-Pollmiller Farmstead District |
| Lampert-Wildflower House |
| Lamson Farm |
| Lamson, Rufus, House |
| Lancaster, Judge Columbia, House |
| Lander County Courthouse |
| Land's End |
| Lane, Anthony, House |
| Lane County Clerk's Building |
| Lane, Edward H., House |
| Lane, Henry S., House |
| Lane Hotel, The |
| Lane-Kendrick-Sherling House |
| Lanford, William, House |
| Lanier Mansion |
| Lankford House |
| Lansdown |
| Lansdowne |
| Lansdown-Higgins, House |
| Lapeer County Courthouse |
| Laraway, John and Martinus, Inn |
| Las Dos Naciones Cigar Factory |
| Lasker Home for Homeless Children |
| Latham House |
| Lathrop-Munn Cobblestone House |
| LaTourette House |
| Latty, Judge Alexander, House |
| Lauderdale |
| Laughlin, James H. and Frances E., House |
| Laurel Hill Presbyterian Church |
| Laurelwood |
| Laurens County Courthouse |
| La Vista |
| La Vue |
| Lawrence Academy |
| Lawrence, Amos, House |
| Lawrence County Courthouse |
| Lawrence Mansion |
| Lay, Hiram, Cobblestone Farmhouse |
| Lay, Samuel, House |
| LDS Seminary |
Data from United States Park Service and Wikidata
