Missouri - Area of significance: Commerce
| Jones Brothers Mule Barn |
| Jones, Lewis, House |
| Joplin and Wall Avenues Historic District |
| Joplin Connor Hotel |
| Joplin Downtown Historic District |
| Joplin Furniture Company Building |
| Joplin Supply Company |
| Journal Printing Company Building |
| Kansas City Cold Storage Company Building |
| Kansas City Live Stock Exchange |
| Kansas City Title and Trust Building |
| Kaullen Mercantile Company |
| Keet-McElhany House |
| Kellerman Motor Car Company |
| Kelley and Browne Flats |
| Kelley-Reppert Motor Company Building |
| Kellogg-Mackay Company Buildings |
| Kelly's Westport Inn |
| Kieselhorst Piano Company Building |
| King's Hill Archeological Site |
| Kirksville Courthouse Square Historic District |
| Kirkwood Building |
| Kite, Robert B. and Vitae A., Apartment Building |
| Klepzig, Walter, Mill and Farm |
| Klostermann Block |
| Knight, Joe, Building |
| Kreienkamp Store |
| Kress Building |
| Krug Park Place Historic District |
| Laclede's Landing |
| Lafayette Garage and Repair Company Building |
| La Plata Square Historic District |
| Lawrence County Bank Building |
| Leacock Sporting Goods Company Building |
| Lee, Robert E., Hotel |
| Lee's Summit Downtown Historic District |
| Leight, Valentine, General Store |
| Lennox Hotel |
| Lentz-Carter Merchandise Store |
| Liggett & Myers Tobacco Co. Building |
| Lincoln Trust Building |
| Lindell Real Estate Company Buidling |
| Liquid Carbonic Company Building |
| Lock and Dam No. 20 Historic District |
| Lock and Dam No. 22 Historic District |
| Lock and Dam No. 24 Historic District |
| Lock and Dam No. 25 Historic District |
| Locust Street Automotive District |
| Loew's Midland Theater-Midland Building |
| Lohman's Landing Building |
| Long, R.A., Building |
| Lowe and Campbell Sporting Goods Building |
| Main and Eight Streets Historic District |
| Main-Spanish Commercial Historic District |
| Majestic Hotel |
| Major Hotel |
| Majors, Alexander, House |
| Maplewood Commercial Historic District at Manchester and Sutton |
| Maplewood Historic Commercial District |
| Maramec Iron Works District |
| Marceline Mercantile & Supply Company |
| Mark Twain Historic District |
| Mark Twain Hotel |
| Marquette Hotel |
| Marquette Hotel |
| Marquette Hotel |
| Marshall Hotel |
| Marthasville Hardware Building |
| Marty, Albert, Building |
| Marx-Hurlburt Building |
| May Company Department Store Building |
| McCain Furniture Store |
| McConahay Building |
| McGee Street Automotive Historic District |
| McIntyre-Burri House |
| McKittrick Farmers Mercantile |
| Medart's |
| Meier General Store |
| Meloan, Cummins & Co., General Store |
| Middle West Hotel |
| Midwest Hotel |
| Miller Building |
| Miller Building, Matthews Hardware, Metropolitan Building |
| Mindrup House-Store |
| Mississippi Valley Trust Company Building |
| Missouri City Savings Bank Building and Meeting Hall |
| Missouri District Warehouse |
| Missouri/Sedalia Trust Company |
| Missouri State Capitol Historic District |
| Missouri Valley Trust Company Historic District |
| Moberly Commercial Historic District |
| Moline Plow Company Building |
| Monroe Hotel |
| Montgomery Opera House |
| Montgomery Ward and Company General Merchandise Warehouse |
| More Automobile Company Building |
| Moselle Iron Furnace Stack |
| Mount Hope Cemetery |
| Munichburg Commercial Historic District |
| Murdock, C.A., Manufacturing Company Building |
Data from United States Park Service and Wikidata
