Arkansas - Criteria: C (architecture/engineering)
| Koons House |
| Kraemer-Harman House |
| Kress Building |
| LaBelle House |
| Lackey General Merchandise and Warehouse |
| Lafayette County Courthouse |
| LaFayette Hotel |
| Lafayette Street Overpass |
| Lair House |
| Lake-Bell House |
| Lake Catherine State Park-Bridge No. 2 |
| Lake Leatherwood Park Historic District |
| Lake Leatherwood Recreational Facilities |
| Lake No. 1 Bridge |
| Lakeport Plantation |
| Lakeshore Drive Bridge |
| Lakeside Hotel |
| Lake Village Commercial Historic District |
| Lake Wedington Historic District |
| Lakewood Park |
| Lambert House |
| Lamberton Cabin |
| Lamb-McSwain House |
| Lancaster, Fred, Barn |
| Land's End Plantation |
| Lane Hotel |
| Laney, Ben, Bridge |
| Langdon Filling Station |
| Langley, Farris and Evelyn, House |
| Larned, Capt., House |
| Lasater, Freeborn T., House |
| Lasley's College Apartments |
| Lattimer House |
| Lawrence County Courthouse |
| Lawrie House |
| Laws-Jarvis House |
| Lay, S. A., House |
| Layton Building |
| Lea, Harvey, House |
| Leake-Ingham Building |
| Lee, Carl and Esther, House |
| Lee County Courthouse |
| Lee Creek Bridge |
| Lee, R. E., House |
| Lee, Robert E., School |
| Lee's Chapel Church and Masonic Hall |
| Lee Service Station |
| Leggett House |
| Leiper-Scott House |
| Leslie Commercial Historic District |
| Leslie-Rolen House |
| Letona Hotel |
| Lewis Brothers Building |
| Lewis, Jay, House |
| Liberty Schoolhouse |
| Lick Skillet Railroad Work Station Historic District |
| Lightle, Ben, House |
| Lightle House |
| Lightle House |
| Lightle, William H., House |
| Lillard-Sprague House |
| Lincoln Avenue Viaduct |
| Lincoln Building |
| Lincoln County Courthouse |
| Linebarger House |
| Linwood Mausoleum |
| Little Buffalo River Bridge |
| Little Cossatot River Bridge |
| Little Cypress Creek Bridge |
| Little, J.E., House |
| Little, Jim, House |
| Little Missouri River Bridge |
| Little River County Courthouse |
| Little Rock Boys Club |
| Little Rock Central Fire Station |
| Little Rock City Hall |
| Little Rock to Cantonment Gibson Road-Short Mountain Segment |
| Little Rock US Post Office and Courthouse |
| Little Rock Y.M.C.A. |
| Little Springs Missionary Baptist Church |
| Little Switzerland |
| Livestock and Equipment Barn, Glenn Homestead |
| Lloyd England Hall |
| Locke, Esther, House |
| Lockesburg High School Gymnasium |
| Lockesburg Waterworks |
| Logan County Courthouse, Eastern District |
| Logan County Courthouse, Southern Judicial District |
| Logan County Jail, Old |
| Lone Star Baptist Church |
| Lone Star School |
| Longino, Dr. H. A., House |
| Long, Web, House and Motel |
| Lonoke County Courthouse |
| Lonoke Downtown Historic District |
| Looney- French House |
| Lovell, Dr., House |
| Luna, Anthony, House |
| Luster Urban Farmstead |
| Luxor Apartments |
Data from United States Park Service and Wikidata
