About 63012 - Barnhart, Missouri
Located in Missouri, the United States is home to the mid-sized community of Barnhart, served by ZIP code 63012. It sits within Jefferson County.
Census data puts the population of this ZIP code at 10,314 residents. That's noticeably above the average for a Missouri ZIP code, which sits near 6,064 people.
Population density runs around 158 people per sq. mile, making it a rural area.
This ZIP code sits alongside neighboring areas like Saint Peters, Columbia, Springfield within Missouri.