605 Area Code is part of 66 counties in the state of South Dakota. There are around 301 cities in the 605 area code. The 605 area code is located in the EST timezone. South Dakota has an avarage population of 806,997 spread between the coordinates of +44.299782 Latitude and -99.438828 Longitude.
Below you will find more info about 605 Area Code and also zip codes, counties, cities and the post offices that belong to this Area Code.