Barnhart, Missouri

Barnhart: census designated place

About

Barnhart is a CDP located in the county of Jefferson in the U.S. state of Missouri.

Barnhart locator map
Location of Barnhart on Missouri map.

Quick Facts about Barnhart

Population 5,682
Country United States of America
State Missouri (United States)
County Jefferson County
Postal code 63012
Area 13.6 km2
Latitude & Longitude 38.3442,-90.3935
Altitude 436 feet / 133 meters
Time Zone America/Chicago
Local time 01:49:35 (16th April 2026)
Weather 83℉ Chance Rain Showers then Chance Showers And Thunderstorms 7-days weather
Jefferson County Missouri Incorporated and Unincorporated areas Barnhart Highlighted locator map image
Jefferson County Missouri Incorporated and Unincorporated areas Barnhart Highlighted locator map image

Geography

Barnhart is located at 38°20'39"N 90°23'36"W (38.3442200, -90.3934500).

Barnhart map

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Weather

83°F
Chance Rain Showers then Chance Showers And Thunderstorms
7 mph SW Thursday

A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 83. Southwest wind around 7 mph. Chanc...

7-Day Forecast
Barnhart zip code is 63012. County name: Jefferson, County fips: 29099

Nearby Schools and Colleges

Schools and campuses linked to Barnhart, MO. Select a name to open its map and contact details.

Code Name City ZIP
177676 Jefferson College Hillsboro (MO) 63050-2440

Nearby Transit Stations (8)

Rail and bus stations connected to Barnhart, MO. Select a station to open its map and address details.

Code Name Address Type
KWD Kirkwood 110 West Argonne Dr. RAIL
STL Gateway Transportation Center 551 South 16th St. RAIL
WAH Washington 301 West Front St. RAIL
ALN Alton 3400 College Ave. RAIL
HEM Hermann Wharf & Gutenberg Sts. RAIL

Closest post offices linked to Barnhart.

Post Office Name City ZIP
Barnhar Post Office Barnhart (MO) 63012

Other cities in Jefferson County

Cities, towns, neighborhoods & other populated places in Jefferson County , MO.

City Name Population Title
Arnold 21,145 City in Missouri
Festus 12,114 City in Missouri
De Soto 6,340 City in Jefferson County, Missouri
Pevely 6,001 City in Jefferson County, Missouri, United States
Crystal City 4,700 City in Jefferson County, Missouri, United States
High Ridge 4,305 Census designated place
Herculaneum 4,261 Roman town
Riverside 3,528 City in Platte County, Missouri, United States
Hillsboro 3,355 City in Missouri, United States
Byrnes Mill 3,015 City in Jefferson County, Missouri, United States
Olympian Village 752 City in Jefferson County, Missouri, United States
Cedar Hill Lakes 227 Village in Jefferson County, Missouri, United States
Scotsdale 216 Human settlement in Jefferson County, Missouri, United States of America
Parkdale 162 Human settlement in Jefferson County, Missouri, United States of America
Kimmswick 140 City in Jefferson County, Missouri, United States

Distance to Other Cities

Barnhart distances to largest Missouri cities