Minnesota - Significance region: Local
| Jones, Harry W., House |
| Jordan Brewery Ruins |
| Jordan Historic District |
| Jukola Boardinghouse |
| Kabetogama Ranger Station District |
| Kahlert Mercantile Store |
| Kajer, Wencl, Farmstead |
| Kappel Wagon Works |
| Kasota Township Hall |
| Kasota Village Hall |
| Kasson Municipal Building |
| Kasson Public School |
| Kasson Water Tower |
| Kelsey, Porter, House |
| Kenneth School |
| Kettle Falls Historic District |
| Kettle River Bridge |
| Keystone Building |
| Kiel & Morgan Hotel/Lyon County Courthouse |
| Kilbride, Dr. E. A., Clinic |
| Kilstofte, Peter P., Farmstead |
| Kimball Prairie Village Hall |
| King Oscar's Settlement |
| Kirch/Latch Building |
| Kline Sanatarium |
| Knife Lake Prehistoric District |
| Kniss, Pierce J., House |
| Knotz, John, House |
| Komensky School |
| Krabbenhoft, Wulf C., Farmstead |
| Krank Manufacturing Company |
| Krause, Christoph, Farmstead |
| Kreitinger Garage |
| Kremer, Peter, House |
| Kuehn, Lucas, House |
| Lac qui Parle County Courthouse |
| Laird, Norton Company Building |
| Lake Benton Opera House |
| Lake City City Hall |
| Lake Harriet Methodist Episcopal Church |
| Lakeland Hotel |
| Lake Park Bandshell |
| Lake Street Sash and Door Company |
| Laketown Moravian Brethren's Church |
| Lammers, Albert, House |
| Lampert Lumber Company Line Yard |
| Larsmont School |
| Larson, A., & Co. Building |
| Larson, Frank A., House |
| Larson Mill |
| Larson's Hunters Resort |
| LaSalle Apartments |
| Latto, Rudolph, House |
| Lauer Flats |
| Laurel Apartments |
| Leathers, H. G., House |
| Lee, Olaf, House |
| Legg, Harry F., House |
| Leland, Muret N., House |
| LeMoine Building |
| Lenont, Charles, House |
| Lenora Methodist Episcopal Church |
| LeRoy Public Library |
| Le Sueur County Courthouse and Jail |
| Levin, Adolph, Cottage |
| Lewis, E. H., House |
| Lewis House and Medical Office |
| Liberal Union Hall |
| Lieb, Vincent and Elizabeth, House |
| Lightkeeper's House |
| Lincoln Bank Building |
| Lincoln Branch Library |
| Lincoln County Fairgrounds |
| Lincoln Park Residential Historic District |
| Lincoln School Building |
| Linden Barn |
| Linden Hills Branch Library |
| Lindholm Oil Company Service Station |
| Litchfield Commercial Historic District |
| Litchfield Opera House |
| Little Falls and Dakota Depot |
| Little Falls Carnegie Library |
| Little Falls Commercial Historic District |
| Little Sisters of the Poor Home for the Aged |
| Lodge Boleslav Jablonsky No. 219 |
| Lodge Zare Zapadu No. 44 |
| Log Cabin |
| Lohmar, John, House |
| Lonsdale Public School |
| Lord, Drew H., House |
| Louisburg School |
| Lovell, Ellen, M., House |
| Lowertown Historic District |
| Luckert, David, House |
| Lumber Exchange Building |
| Lund, John G., House |
| Lundring Service Station |
| Luverne Carnegie Library |
| Maass and McAndrew Company Building |
| MacDonald-Todd House |
Data from United States Park Service and Wikidata