| State Name | County Name | City |
|---|---|---|
| Massachusetts | Middlesex | Littleton |
| New Jersey | Bergen | Lodi |
| Colorado | Douglas | Lone Tree |
| New Jersey | Monmouth | Little Silver |
| Texas | Lamb | Littlefield |
| Pennsylvania | Adams | Littlestown |
| Colorado | Arapahoe | Littleton |
| New Hampshire | Grafton | Littleton |
| Massachusetts | Middlesex | Littleton Common |
| California | Santa Cruz | Live Oak |
| Florida | Suwannee | Live Oak |
| Texas | Bexar | Live Oak |
| California | Alameda | Livermore |
| Maine | Androscoggin | Livermore Falls |
| Alabama | Sumter | Livingston |
| California | Merced | Livingston |
| Montana | Park | Livingston |
| New Jersey | Essex | Livingston |
| New York | Columbia | Livingston |
| Tennessee | Overton | Livingston |
| Texas | Polk | Livingston |
| Louisiana | Pointe Coupee | Livonia |
| Michigan | Wayne | Livonia |
| New York | Livingston | Livonia |
| Texas | Llano | Llano |
| New York | Ulster | Lloyd |
| New York | Suffolk | Lloyd Harbor |
| Virginia | Prince William | Loch Lomond |
| Colorado | Weld | Lochbuie |
| Maryland | Baltimore | Lochearn |
| Florida | Lee | Lochmoor Waterway Estates |
| Washington | Snohomish | Lochsloy |
| Pennsylvania | Clinton | Lock Haven |
| California | San Joaquin | Lockeford |
| Florida | Orange | Lockhart |
| Texas | Caldwell | Lockhart |
| Ohio | Hamilton | Lockland |
| Illinois | Will | Lockport |
| New York | Niagara | Lockport |
| Montana | Yellowstone | Lockwood |
| North Carolina | Stanly | Locust |
| Georgia | Henry | Locust Grove |
| New York | Nassau | Locust Valley |
| California | San Joaquin | Lodi |
| Ohio | Medina | Lodi |
| Wisconsin | Columbia | Lodi |
| New Jersey | Gloucester | Logan |
| Ohio | Hocking | Logan |
| Pennsylvania | Blair | Logan |
| Utah | Cache | Logan |
| West Virginia | Logan | Logan |
| Indiana | Cass | Logansport |
| Georgia | Walton | Loganville |
| Puerto Rico | Loíza | Loíza |
| Montana | Missoula | Lolo |
| California | San Bernardino | Loma Linda |
| California | Yuba | Loma Rica |
| Illinois | DuPage | Lombard |
| California | Los Angeles | Lomita |
| California | Santa Barbara | Lompoc |
| Kentucky | Laurel | London |
| Ohio | Madison | London |
| Pennsylvania | Chester | London Britain |
| Pennsylvania | Chester | London Grove |
| New Hampshire | Rockingham | Londonderry |
| Pennsylvania | Dauphin | Londonderry |
| Oklahoma | Carter | Lone Grove |
| California | Los Angeles | Long Beach |
| Mississippi | Harrison | Long Beach |
| New Jersey | Ocean | Long Beach |
| New York | Nassau | Long Beach |
| New Jersey | Monmouth | Long Branch |
| Virginia | Fairfax | Long Branch |
| Illinois | Lake | Long Grove |
| Connecticut | New London | Long Hill |
| New Jersey | Morris | Long Hill |
| Illinois | Lake | Long Lake |
| Minnesota | Todd | Long Prairie |
| North Carolina | Catawba | Long View |
| Florida | Manatee | Longboat Key |
| Washington | Pierce | Longbranch |
| Massachusetts | Hampden | Longmeadow |
| Colorado | Boulder | Longmont |
| Pennsylvania | Berks | Longswamp |
| Texas | Gregg | Longview |
| Washington | Cowlitz | Longview |
| Washington | Cowlitz | Longview Heights |
| Florida | Seminole | Longwood |
| Arkansas | Lonoke | Lonoke |
| Minnesota | Rice | Lonsdale |
| Indiana | Martin | Loogootee |
| California | Placer | Loomis |
| New Jersey | Warren | Lopatcong |
| Texas | Hidalgo | Lopezville |
| Ohio | Lorain | Lorain |
| Pennsylvania | Berks | Lorane |
| Ohio | Trumbull | Lordstown |
| Virginia | Fairfax | Lorton |
| California | Orange | Los Alamitos |
| New Mexico | Los Alamos | Los Alamos |
