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is a city in Madison County, Iowa, United States. The population was 4,768 at the 2000 census. It is the county seat of Madison County.
Winterset is part of the Des Moines – West Des Moines Metropolitan Statistical Area.
According to the United States Census Bureau, the city has a total area of 3.5 square miles (9.1 km²), all of it land.
Winterset is located about 45 minutes southwest of the state capital of Des Moines.