| Official Name: | Barnhart, Missouri |
| Settlement Type: | CDP |
| Mapsize: | 250px |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Missouri |
| Subdivision Type2: | County |
| Subdivision Name2: | Jefferson |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 13.62 |
| Area Land Km2: | 13.21 |
| Area Water Km2: | 0.41 |
| Area Total Sq Mi: | 5.26 |
| Area Land Sq Mi: | 5.10 |
| Area Water Sq Mi: | 0.16 |
| Population As Of: | 2020 |
| Population Total: | 5832 |
| Population Density Km2: | 441.45 |
| Population Density Sq Mi: | 1143.31 |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 554 |
| Coordinates: | 38.3358°N -90.4044°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 63012 |
| Area Code: | 636 |
| Blank Name: | FIPS code |
| Blank Info: | 29-03394[2] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 2393328 |
Barnhart is a census-designated place (CDP) in Jefferson County, Missouri, United States. Barnhart is also a suburb of St. Louis.
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.[3]
According to the United States Census Bureau, the CDP has a total area of 5.25sqmi, of which 5.09sqmi is land and 0.16sqmi is water.[4]
As of the census[5] of 2010, there were 5,682 people, 1,920 households, and 1,576 families living in the CDP. The population density was 1116.3PD/sqmi. There were 2,003 housing units at an average density of 393.5/sqmi. The racial makeup of the CDP was 97.4% White, 0.5% African American, 0.3% Native American, 0.4% Asian, 0.3% from other races, and 1.1% from two or more races. Hispanic or Latino of any race were 2.1% of the population.
There were 1,920 households, of which 44.0% had children under the age of 18 living with them, 65.3% were married couples living together, 10.8% had a female householder with no husband present, 6.0% had a male householder with no wife present, and 17.9% were non-families. 12.6% of all households were made up of individuals, and 2.7% had someone living alone who was 65 years of age or older. The average household size was 2.93 and the average family size was 3.17.
The median age in the CDP was 34.5 years. 27.6% of residents were under the age of 18; 8.1% were between the ages of 18 and 24; 28.8% were from 25 to 44; 28.5% were from 45 to 64; and 6.9% were 65 years of age or older. The gender makeup of the CDP was 50.4% male and 49.6% female.
As of the census of 2000, there were 6,108 people, 1,962 households, and 1,663 families living in the CDP. The population density was 1188.5sp=usNaNsp=us. There were 1,999 housing units at an average density of 389sp=usNaNsp=us. The racial makeup of the CDP was 97.82% White, 0.36% African American, 0.13% Native American, 0.38% Asian, 0.02% Pacific Islander, 0.34% from other races, and 0.95% from two or more races. Hispanic or Latino of any race were 1.47% of the population.
There were 1,962 households, out of which 48.8% had children under the age of 18 living with them, 70.8% were married couples living together, 9.1% had a female householder with no husband present, and 15.2% were non-families. 11.2% of all households were made up of individuals, and 2.1% had someone living alone who was 65 years of age or older. The average household size was 3.08 and the average family size was 3.31.
In the CDP, the population was spread out, with 30.9% under the age of 18, 8.8% from 18 to 24, 34.4% from 25 to 44, 20.8% from 45 to 64, and 5.1% who were 65 years of age or older. The median age was 32 years. For every 100 females, there were 103.7 males. For every 100 females age 18 and over, there were 100.0 males.
The median income for a household in the CDP was $56,559, and the median income for a family was $59,189. Males had a median income of $41,758 versus $28,630 for females. The per capita income for the CDP was $20,940. About 0.9% of families and 2.6% of the population were below the poverty line, including none of those under age 18 and 6.5% of those age 65 or over.
Barnhart has a public library, a branch of the Jefferson County Library.[6]
Most of the Barnhart CDP is in the Windsor C-1 School District, while a portion of the CDP is in the Fox C-6 School District.[7] A southwestern portion of the wider Barnhart area is assigned to the Dunklin R-V School District.[8]
The Windsor district previously ended at the eighth grade. High school students would attend Crystal City High School or Herculaneum High School.[9] The Fox district was originally a K-8 school district, with high school students also having a choice of Crystal City High and Herculaneum High. The Fox district became K-12 when Fox High School was established in 1955.[10]