Silex is a village in Lincoln County, Missouri, United States. The population was 187 at the 2010 census. As of the census of 2010, there were 187 people, 57 households, and 37 families residing in the village. The population density was 984.2 inhabitants per square mile (380.0/km2). There were 84 housing units at an average density of 442.1 per square mile (170.7/km2). The racial makeup of the village was 97.9% White and 2.1% African American.
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