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is a city in Medina and Wayne Counties in the U.S. state of Ohio. The city is governed by Wayne County, although a small portion of the city is located in Medina County. The population was 6,314 at the 2000 census. Rittman is served by a branch of the Wayne County Public Library.
According to the United States Census Bureau, the town has a total area of 6.2 square miles (16.2 km²), of which, 6.0 square miles (15.6 km²) of it is land and 0.2 square miles (0.5 km²) of it (3.37%) is water.