Maddock is a city in Benson County, North Dakota, United States. The population was 402 at the 2020 census. Maddock was founded in 19…Maddock is a city in Benson County, North Dakota, United States. The population was 402 at the 2020 census. Maddock was founded in 1901. According to the United States Census Bureau, the city has a total area of 0.89 square miles, all land.
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