Washta is a city in Cherokee County, Iowa, United States. The population was 248 at the 2010 census. It holds the distinction of being "The Coldest Spot in Iowa," having recorded a temperature of 47 degrees below zero without wind chill on January 12, 1912. Washta's name dates back to 1868 when a local man named Whisman turned his farm into a trading post/mail stop for the freight train going from Correctionville, Iowa to Cherokee, Iowa. He was asked to be the official postmaster for the area.