Fairview Heights, IL is a city located in Saint Clair County, Illinois and has a land area of 13.39 square miles (34.68 km2). The water area for the city is 0.08 square miles or 0.21 km2. There is one unique zip code in Fairview Heights, Illinois and it is 62208. The area code(s) for Fairview Heights is 618.
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