ZIP Code 63012
About Barnhart
Barnhart is a census-designated place (CDP) in Jefferson County, Missouri, United States. As of the 2020 census, Barnhart had a population of 5,832. Barnhart is also a suburb of St. Louis.
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Area Profile
US Census (ACS 5-year · Gazetteer)
10,977
population
$99,860
median household income
437
people / sq mi
$228,500
median home value
$1,332
median gross rent
37.1
median age
4,146
housing units
3,897
households
25.1
land area (sq mi)