Winona Lake, IN is a city located in Kosciusko County, Indiana and has a land area of 2.78 square miles (7.20 km2). The water area for the city is 0.12 square miles or 0.31 km2. There is one unique zip code in Winona Lake, Indiana and it is 46590. The area code(s) for Winona Lake is 574.
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