Townapedia
Mastadon SHS museum skeleton by Kevin Saff
Mastadon SHS museum skeleton by Kevin Saff · Kevin Saff from Minneapolis, USA, CC BY-SA 2.0
Stonebrook
Stonebrook · Quentin Melson, CC BY-SA 4.0
Kimmswick, MO2
Kimmswick, MO2 · Paul Sableman, CC BY 2.0

Barnhart, Missouri

Barnhart is a community of 5,785 people in Jefferson County, Missouri.

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Population5,785 -2.7% since 2019
Elevation436 ft 133 m
Land area5.0 sq mi
ZIP code63012
Nearest airportSaint Louis Downtown - Parks Airport (CPS) 21 mi

Why visit Barnhart

Townapedia lists 4 museums and landmarks, 2 parks and trails, 2 places to eat and 1 attraction in and around town.

Highlights include Windsor Harbor Road Bridge, Gustave Greystone-Meissner House and Kimmswick Historic District.

July is the warmest month, with average highs of 88°F; January lows average 22°F.

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.

From the Wikipedia article Barnhart, Missouri (this version), under CC BY-SA 4.0.

Things to do1

Windsor Harbor Road Bridge

Bridge · National Register of Historic Places · 2.9 mi

Bridge in United States of America

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Museums and landmarks4

Gustave Greystone-Meissner House

Monument and historic site · National Register of Historic Places · 2.6 mi

Estate in Jefferson County, Missouri

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Kimmswick Historic District

Monument and historic site · National Register of Historic Places · 3.0 mi

Historic district in Kimmswick, Missouri

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Mastodon State Historic Site

Monument and historic site · National Register of Historic Places · 3.0 mi

Historic/archaeological site in Missouri, United States

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Stonebrook

Monument and historic site · National Register of Historic Places · 3.6 mi

Historic home located at Antonia, Jefferson County, Missouri, United States

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Parks, trails and playgrounds2

Glen Park

Park · 1.8 mi

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Sun Valley Park

Park · 1.8 mi

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Restaurants and cafes2

Ginny's

Ice cream · 0.9 mi

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Church's Chicken

Fast food · Chicken · 1.0 mi

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History

The land surrounding Barnhart originally belonged to Benjamin O'Fallon, who settled here with his family in 1834. The James O'Fallon Home was built in 1860, and was purchased in 1884 by Joseph G. Marriott, a cattle rancher who introducing the first Holstein cattle to Jefferson County. The extant home is now called the Parkton Mansion. The town was not named until after the Frisco Railroad was completed in the early 1900s, and may have been named for Mrs. C. L. Barnhart, who donated land for the Frisco Railroad Depot.

From the History section of Barnhart, Missouri on Wikipedia, under CC BY-SA 4.0.

Churches and places of worship2

Shopping1

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Gas and EV charging2

Schools, colleges and libraries18

Map of Barnhart

32 places. The map loads OpenStreetMap tiles when you open it.

Climate by month

20°40°60°80°January: 2.7 in of rainFebruary: 2.5 in of rainMarch: 4.0 in of rainApril: 4.9 in of rainMay: 4.8 in of rainJune: 4.7 in of rainJuly: 3.8 in of rainAugust: 3.6 in of rainSeptember: 3.4 in of rainOctober: 2.8 in of rainNovember: 3.5 in of rainDecember: 2.8 in of rainJanuary: 41°FFebruary: 46°FMarch: 56°FApril: 68°FMay: 76°FJune: 85°FJuly: 88°FAugust: 87°FSeptember: 81°FOctober: 70°FNovember: 56°FDecember: 45°FJanuary: 22°FFebruary: 25°FMarch: 34°FApril: 44°FMay: 54°FJune: 63°FJuly: 67°FAugust: 65°FSeptember: 57°FOctober: 46°FNovember: 35°FDecember: 26°FJFMAMJJASOND
Average high Average low Rain
Monthly table
MonthHighLowRainSnow
Jan41°F22°F2.7 in2.1 in
Feb46°F25°F2.5 in2.7 in
Mar56°F34°F4.0 in1.1 in
Apr68°F44°F4.9 in0.2 in
May76°F54°F4.8 in0.0 in
Jun85°F63°F4.7 in0.0 in
Jul88°F67°F3.8 in0.0 in
Aug87°F65°F3.6 in0.0 in
Sep81°F57°F3.4 in0.0 in
Oct70°F46°F2.8 in0.0 in
Nov56°F35°F3.5 in0.6 in
Dec45°F26°F2.8 in2.5 in

U.S. Climate Normals 1991-2020 for Festus (7 mi away), NOAA NCEI.

People and cost of living

$95,811median household income
$229,200median home value
$1,565median monthly rent
35.8median age
20.1%of adults have a bachelor's degree or higher
89.6%of homes are owner-occupied
30.2 minaverage commute
Age of residents
Under 1822%18 to 3427%35 to 6440%65 and over11%

American Community Survey 5-year estimates, 2020-2024, U.S. Census Bureau. Estimates have margins of error, larger for small towns.

Disaster history

Jefferson County has had 21 federal disaster declarations since 2000, most often for severe storms.

  • 2025-05-21: Severe Storms, Straight-Line Winds, Tornadoes, And Wildfires (Severe Storm)
  • 2020-03-26: Covid-19 Pandemic (Biological)
  • 2020-03-13: Covid-19 (Biological)
  • 2019-07-09: Severe Storms, Tornadoes, And Flooding (Severe Storm)
  • 2017-06-02: Severe Storms, Tornadoes, Straight-Line Winds And Flooding (Flood)
  • 2016-01-21: Severe Storms, Tornadoes, Straight-Line Winds, And Flooding (Flood)

OpenFEMA disaster declarations summaries.

Getting there and nearby towns

Saint Louis Downtown - Parks Airport (CPS) is the nearest airport with scheduled flights listed in OpenStreetMap, 21 miles away.

Drive times are estimates from straight-line distance, not routes.

Reviews, tips and questions

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Sources and licences

Photo credits

Page built October 30, 2026. Spotted a mistake? Tell us or suggest a place.