- La Grange (Population: 14,928)
- Lackawanna (Population: 19,064)
- LaFayette (Population: 4,833)
- Lake Carmel (Population: 8,663)
- Lake Erie Beach (Population: 4,499)
- Lake George (Population: 3,578)
- Lake Grove (Population: 10,250)
- Lake Katrine (Population: 2,396)
- Lake Luzerne-Hadley (Population: 2,240)
- Lake Luzerne (Population: 3,219)
- Lake Mohegan (Population: 5,979)
- Lake Placid (Population: 2,638)
- Lake Ronkonkoma (Population: 19,701)
- Lake Success (Population: 2,797)
- Lakeland (Population: 2,852)
- Lakeview (Population: 5,607)
- Lakewood (Population: 3,258)
- Lancaster (Population: 39,019)
- Lansing (Population: 10,521)
- Larchmont (Population: 6,485)
- Lattingtown (Population: 1,860)
- Laurel Hollow (Population: 1,930)
- Laurel (Population: 1,188)
- Laurens (Population: 2,402)
- Lawrence (Population: 6,522)
- Le Ray (Population: 19,836)
- Le Roy (Population: 7,790)
- Lebanon (Population: 1,329)
- Ledyard (Population: 1,832)
- Lee (Population: 6,875)
- Leicester (Population: 2,287)
- Lenox (Population: 8,665)
- Leon (Population: 1,380)
- Levittown (Population: 53,067)
- Lewis (Population: 1,200)
- Lewisboro (Population: 12,324)
- Lewiston (Population: 16,257)
- Leyden (Population: 1,792)
- Liberty (Population: 9,632)
- Lido Beach (Population: 2,825)
- Lima (Population: 4,541)
- Lime Lake-Machias (Population: 1,422)
- Lincoln (Population: 1,818)
- Lincoln Park (Population: 2,337)
- Lincolndale (Population: 2,018)
- Lindenhurst (Population: 27,819)
- Lindley (Population: 1,913)
- Lisbon (Population: 4,047)
- Lisle (Population: 2,707)
- Litchfield (Population: 1,453)
- Little Falls (Population: 5,188)
- Little Valley (Population: 1,788)
- Liverpool (Population: 2,505)
- Livingston Manor (Population: 1,355)
- Livingston (Population: 3,424)
- Livonia (Population: 7,286)
- Lloyd Harbor (Population: 3,675)
- Lloyd (Population: 9,941)
- Locke (Population: 1,900)
- Lockport (Population: 22,279)
- Locust Valley (Population: 3,521)
- Lodi (Population: 1,476)
- Long Beach (Population: 35,462)
- Lorenz Park (Population: 1,981)
- Louisville (Population: 3,195)
- Lowville (Population: 4,548)
- Lumberland (Population: 1,939)
- Lyme (Population: 2,015)
- Lynbrook (Population: 19,911)
- Lyncourt (Population: 4,268)
- Lyons (Population: 5,831)
- Lyonsdale (Population: 1,273)
- Lysander (Population: 19,285)
We Support Web Standards: