Westfield is a town in Clark County, Illinois, United States. The population was 678 at the 2000 census. Reflecting the city's economic decline, much of the downtown area consists of boarded-up and abandoned buildings.
Westfield is located at 39°27′20″N 87°59′49″W / 39.45556°N 87.99694°W / 39.45556; -87.99694 (39.455583, -87.996935).
According to the United States Census Bureau, the village has a total area of 1.0 square miles (2.6 km²), all of it land.