Missouri - Significance region: Local
| Kansas City Star Building |
| Kansas City Terminal Railway Company Roundhouse Historic District |
| Kansas City Title and Trust Building |
| Kansas City Water Department Building |
| Katz, Michael H. and Rose, House |
| Kaullen Mercantile Company |
| Keet-McElhany House |
| Keith, Charles S., House |
| Keith, David, House |
| Keller, Christian and Anna, Farmstead |
| Kellerman Motor Car Company |
| Kelley and Browne Flats |
| Kelley-Reppert Motor Company Building |
| Kellogg-Mackay Company Buildings |
| Kelton House |
| Kemper Addition Historic District |
| Kemper Arena |
| Kennard, J., and Sons Carpet Company Building |
| Kennett City Hall and Masonic Lodge |
| Kessler Apartments |
| Kiel Opera House |
| Kieselhorst Piano Company Building |
| Kimmswick Historic District |
| King, J.E., Manufacturing Company |
| Kingshighway Hills Commercial District |
| Kirksville Courthouse Square Historic District |
| Kirkwood Building |
| Kirkwood Missouri Pacific Depot |
| Kite, Robert B. and Vitae A., Apartment Building |
| Klepzig, Walter, Mill and Farm |
| Klostermann Block |
| Knight, Joe, Building |
| Knight, William Baker and Mary, House |
| Koch, Robert, Hospital |
| Kohmueller, Louis, House |
| Koken Barbers' Supply Co. Historic District |
| Krause, Frederick, Mansion |
| Kreienkamp Store |
| Kress Building |
| Kritser House |
| Krog, Albert, House |
| Krug Park Place Historic District |
| Kruse, Casper, House |
| Kuehne-Schmidt Apartments |
| Kulage, Otto, House |
| Laclede Building |
| Laclede Gas Light Company Pumping Station G |
| Ladue Estates |
| Lafayette County Courthouse |
| Lafayette Garage and Repair Company Building |
| Lambert Building |
| Lambskin Temple |
| Land Bank Building |
| Landers Theater |
| Lange, William A., Subdivision |
| Lansdown-Higgins, House |
| La Plata Square Historic District |
| Larimore, Wilson, House |
| LaSalle Building |
| Laughlin, Drs. George and Blanche, House |
| Lawler Motor Company Building |
| Lawrence County Bank Building |
| Lawrence County Courthouse |
| Leacock Sporting Goods Company Building |
| Lee, Robert E., Hotel |
| Lee's Summit Christian Church Building |
| Lee's Summit Downtown Historic District |
| Lee's Summit Post Office |
| LeGear Medicine Company Building |
| Leight, Valentine, General Store |
| Lennox Hotel |
| Lentz-Carter Merchandise Store |
| Leo Ellis Post #22, American Legion Building |
| Leonardo |
| Lesan-Gould Building |
| Lewis County Courthouse |
| Lewis Place Historic District |
| Lewis-Webb House |
| Liggett and Myers (Rice-Stix) Building |
| Liggett & Myers Historic District |
| Liggett & Myers Tobacco Co. Building |
| Ligon Apartments |
| Lilly, Edward S. and Mary Annatoile Albert, House |
| Lincoln High School |
| Lincoln School |
| Lincoln School |
| Lincoln School |
| Lincoln School |
| Lincoln School |
| Lincoln School |
| Lindell Park Subdivision Historic District |
| Lindell Real Estate Company Buidling |
| Lindenwood Neighborhood Historic District |
| Lindenwood School |
| Link, Oliver L. and Catherine, House |
| Linn County Courthouse |
| Linn County Jail and Sheriff's Residence |
| Linwood Presbyterian Church and Home for Convalescent Employed Women |
| Liquid Carbonic Company Building |
| Lister Building |
Data from United States Park Service and Wikidata
