Otisville, MI is a city located in Genesee County, Michigan and has a land area of 33.35 square miles (86.38 km2). The water area for the city is 0.42 square miles or 1.09 km2. There is one unique zip code in Otisville, Michigan and it is 48463. The area code(s) for Otisville is 810.
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