Pecatonica, IL is a city located in Winnebago County, Illinois and has a land area of 74.54 square miles (193.06 km2). The water area for the city is 0.46 square miles or 1.19 km2. There is one unique zip code in Pecatonica, Illinois and it is 61063. The area code(s) for Pecatonica is 815.
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