Mercer is a city in McLean County, North Dakota, United States. The population was 88 at the 2020 census, and was estimated to be 126 in 2024,
Geography
The city of Mercer lies on North Dakota Highway 200 between Underwood and McClusky.
According to the United States Census Bureau, the city has a total area of , of which is land and is water.
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|footnote=U.S. Decennial Census<br>2020 Census