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is a city in Maries and Osage counties in the U.S. state of Missouri. The population was 1,344 at the 2000 census.
The Osage County portion of Belle is part of the Jefferson City, Missouri Metropolitan Statistical Area.
According to the United States Census Bureau, the city has a total area of 1.3 square miles (3.3 km²), all land. Belle is surrounded by the Osage and Gasconade Rivers, and is approximately 100 miles west southwest of St. Louis.