Minnesota - Criteria: C (architecture/engineering)
| Lake City City Hall |
| Lake County Courthouse and Sheriff's Residence |
| Lake Shetak State Park WPA/Rustic Style Group Camp |
| Lake Shetek State Park WPA/Rustic Style Historic District |
| Lake St. Croix Overlook |
| Laketown Moravian Brethren's Church |
| Lakewood Cemetery Memorial Chapel |
| Lake Zumbro Hydroelectric Generating Plant |
| Lammers, Albert, House |
| Larson, A., & Co. Building |
| Larson, Frank A., House |
| Larson's Hunters Resort |
| Latto, Rudolph, House |
| Lauer Flats |
| Lawther, James L., House |
| Leathers, H. G., House |
| Le Duc, William G., House |
| Lee, Olaf, House |
| Legg, Harry F., House |
| Leland, Muret N., House |
| Lenont, Charles, House |
| LeRoy Public Library |
| Lester River Bridge-Bridge No. 5772 |
| Le Sueur County Courthouse and Jail |
| Leuthold, Jacob, Jr., House |
| Levin, Adolph, Cottage |
| Lewis, E. H., House |
| Lieb, Vincent and Elizabeth, House |
| Lincoln Park Residential Historic District |
| Lincoln School Building |
| Lindbergh, Charles A., State Park WPA/Rustic Style Historic Resources |
| Lind, Gov. John, House |
| Lindholm Oil Company Service Station |
| Little Falls Carnegie Library |
| Little Sisters of the Poor Home for the Aged |
| Log Cabin |
| Lohmar, John, House |
| Long Meadow Bridge |
| Longyear, E. J., First Diamond Drill Site |
| 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 |
| MADEIRA (Schooner-Barge) Shipwreck |
| Madison Carnegie Library |
| Madison City Hall |
| Mahnomen City Hall |
| Mahnomen County Courthouse |
| Main Building, Concordia College |
| Maiser, Charles, House |
| Majerus, Michael, House |
| Manhattan Building |
| Mankato Public Library and Reading Room |
| Mantorville Historic District |
| Maplewood Chapel |
| Marcell Ranger Station |
| Marine on St. Croix Historic District |
| Marnach, Nicholas, House |
| Marsh Concrete Rainbow Arch Bridge |
| Martin, Charles J., House |
| Martin County Courthouse |
| Martin, Wiliam, House |
| Marysville Swedesburg Lutheran Church |
| Masonic Temple |
| Masonic Temple Delta Lodge No. 119 |
| Matson, Mike and Mary, Historic Farmstead |
| MAY FLOWER (shipwreck) |
| Maynard State Bank |
| Mayo, Dr. William J., House |
| McCall, Cormack, House |
| McCall, Thomas, House |
| McCarthy, Timothy J., Building |
| McGill, Andrew R., House |
| McKusick, Ivory, House |
| McLeod County Courthouse |
| McMahon, Thomas Bridget Shanahan, House |
| Memorial Library |
| Mendota Road Bridge |
| Merchants National Bank |
| Merchants National Bank |
| Methodist Episcopal Church |
| Mickey's Diner |
| Milaca Municipal Hall |
| Mille Lacs County Courthouse |
| Miller, Harrison, Farmhouse |
| Miller, John, Farmhouse |
| Milwaukee Avenue Historic District |
| Milwaukee Elevator |
| Minneapolis Armory |
| Minneapolis Brewing Company |
| Minneapolis City Hall-Hennepin County Courthose |
| Minneapolis Public Library, North Branch |
| Minneapolis St. Paul and Sault Ste. Marie Depot |
| Minneapolis Warehouse Historic District |
| Minneapolis YMCA Central Building |
| Minnehaha Grange Hall |
Data from United States Park Service and Wikidata