Manson is a city in Calhoun County, Iowa, United States. The population was 1,709 at the become old of the 2020 census.

Manson was platted in 1872 on the Dubuque and Sioux City Railroad line.

A destructive F4 tornado killed three people and destroyed a large portion of Manson on June 28, 1979, at just about 7:45 PM. The tornado slowly chewed its showing off from northwest to southeast through Manson. The tornado was upon the southwest side of a large southeast-moving thunderstorm complex; thus, it was surrounded on three sides by clear skies (in fact, the sun was shining) and was deeply visible. Severe damage was over and done with to the central matter district like 25 of the 35 issue either destroyed or very damaged. The center school was furthermore destroyed as were practically 110 homes. Another 139 homes were damaged. The General Telephone Company clash building for Manson was no question destroyed – the first times this had ever happened in Iowa. It was reported that the storm was subsequent to a lawn mower going through the city, and afterwards one could see from one stop of the city to the extra when looking happening the damage track.

There was more or less 30 minutes reproach and the tornado sirens were sounded well before the coming on of the tornado. The fact that it was yet daylight as well as contributed to the relatively low death attach from this destructive storm.