Mosinee is located centrally  between the Cities of Wausau and Stevens Point.   Interstate 39 and State Hwy 153 intersect in the City of Mosinee.

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According to the United States Census Bureau, the City has a total area of 8.54 square miles (22.12 km2), of which, 7.77 square miles (20.12 km2) is land and 0.77 square miles (1.99 km2) is water.

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The address of City Hall is:  225 Main Street, Mosinee, WI  54455.

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GPS coordinates  44°47'30" North, 89°42'19" West (44.791709, −89.705301)

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