509 Area Code is part of 20 counties in the state of Washington. There are around 140 cities in the 509 area code. The 509 area code is located in the EST timezone. Washington has an avarage population of 6,597,499 spread between the coordinates of +47.400902 Latitude and -121.490494 Longitude.
Below you will find more info about 509 Area Code and also zip codes, counties, cities and the post offices that belong to this Area Code.