Langley, or as it is commonly referred to in literature 'Langley by the Sea', is a city in Island County, Washington, United States located along near the eastern end of the north shore of the south end of Whidbey Island. It is the second largest incorporated area on Whidbey. Langley's population is 959, and the number of people with a Langley postal address is 4,878. The geographical area of Langley proper is only.1 km² but the whole community that is considered to be Langley is 67.86 km². Aside from official business, the entire ZIP code community is referred to as Langley. Langley apartments for rent comparison page shows most up to date rent information on Langley apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.