St. Clair is a city in Franklin County, Missouri, United States.

[6] The International Shoe Company Building and Panhorst Feed Store are listed on the National Register of Historic Places.

[7] As of the census[9] of 2010, there were 4,724 people, 1,908 households, and 1,136 families living in the city.

There were 2,142 housing units at an average density of 578.9 per square mile (223.5/km2).

33.5% of all households were made up of individuals, and 13.8% had someone living alone who was 65 years of age or older.

Since 2005 the unemployment rate in St. Clair, Missouri has ranged from 4.4% in April 2007 to 13.3% in January 2009.

As of the census[10] of 2000, there were 4,390 people, 1,765 households, and 1,143 families living in the city.

There were 1,900 housing units at an average density of 607.8 per square mile (234.7/km2).

30.4% of all households were made up of individuals, and 14.0% had someone living alone who was 65 years of age or older.