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is a city in Benton County, Iowa, United States. The population was 2,878 at the 2000 census. It is part of the Cedar Rapids Metropolitan Statistical Area.
Belle Plaine is located on both the historic Lincoln Highway and the cross country tracks of the Union Pacific Railroad. The Belle Plaine area was hard hit by the February 24, 2007 ice storm with power outages.
According to the United States Census Bureau, the city has a total area of 3.2 square miles (8.4 km²), of which, 3.2 square miles (8.4 km²) of it is land and 0.31% is water.