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Wentzville, Missouri
City of Wentzville
Old Downtown Wentzville
Old Downtown Wentzville
Location of Wentzville
Location of Wentzville
Country United States
State Missouri
County St. Charles County
Founded 1855
 • Total 19.94 sq mi (51.65 km2)
 • Land 19.93 sq mi (51.62 km2)
 • Water 0.01 sq mi (0.03 km2)
623 ft (190 m)
 • Total 44,372
 • Density 2,223.05/sq mi (858.26/km2)
Time zone UTC−6 (Central (CST))
 • Summer (DST) UTC−5 (CDT)
ZIP code
Area code(s) 636 Exchanges: 327,332,639,887
FIPS code 29-78442
GNIS feature ID 0756888

Wentzville is an exurb of St. Louis that is located in western St. Charles County, Missouri, United States. As of the 2020 census, the city had a total population of 44,372, making it the 15th largest city in Missouri. Wentzville has been the fastest growing city in Missouri, by percentage population increase, for two consecutive decades from 2000 to 2020. As the site of the Rotary Park, Wentzville is host to the St. Charles County Fair and the St. Louis Renaissance Festival.


Wentzville was laid out in 1855. The community has the name of one Peter Louis Kingston Wentz III, a railroad official. A post office called Wentzville has been in operation since 1859.

The Wentzville Tobacco Company Factory was listed on the National Register of Historic Places in 1990.


Wentzville is located at 38°48'58" North, 90°51'26" West (38.816010, −90.857198).

According to the United States Census Bureau, the city has a total area of 19.98 square miles (51.75 km2), of which, 19.96 square miles (51.70 km2) is land and 0.02 square miles (0.05 km2) is water.


Historical population
Census Pop.
1880 541
1890 457 −15.5%
1900 519 13.6%
1910 539 3.9%
1920 514 −4.6%
1930 596 16.0%
1940 752 26.2%
1950 1,227 63.2%
1960 2,742 123.5%
1970 3,223 17.5%
1980 3,193 −0.9%
1990 5,088 59.3%
2000 6,896 35.5%
2010 29,070 321.5%
2020 44,372 52.6%
U.S. Decennial Census

2010 census

As of the census of 2010, there were 29,070 people, 9,767 households, and 7,852 families living in the city. The population density was 1,456.4 inhabitants per square mile (562.3/km2). There were 10,305 housing units at an average density of 516.3 per square mile (199.3/km2). The racial makeup of the city was 89.9% White, 6.0% African American, 0.3% Native American, 1.2% Asian, 0.8% from other races, and 1.9% from two or more races. Hispanic or Latino of any race were 2.7% of the population.

There were 9,767 households, of which 51.5% had children under the age of 18 living with them, 65.3% were married couples living together, 11.1% had a female householder with no husband present, 4.0% had a male householder with no wife present, and 19.6% were non-families. 15.6% of all households were made up of individuals, and 5% had someone living alone who was 65 years of age or older. The average household size was 2.96 and the average family size was 3.31.

The median age in the city was 31.2 years. 33.7% of residents were under the age of 18; 6.2% were between the ages of 18 and 24; 33.7% were from 25 to 44; 19% were from 45 to 64; and 7.5% were 65 years of age or older. The gender makeup of the city was 48.5% male and 51.5% female.


The city's major employer is General Motors which has a full size van and small truck assembly plant located there, called Wentzville Assembly.

One of the city's largest employers, from 2013 to 2017, was Serco. The British-based company was awarded a five-year contract in 2013 to manage the implementation of the Patient Protection and Affordable Care Act. As a result of the contract, Serco opened its Affordable Care Act application processing facility in Wentzville in August of that same year in the building that was formerly home to the US Fidelis call center. The Wentzville Serco facility attracted national attention in 2014 after whistle-blower allegations revealed that workers spent large amounts of time sleeping or playing games due to lack of work. At its peak, Serco employed approximately 1,500 employees in Wentzville. In 2018, Serco announced its closure of the Wentzville processing center to coincide with the end of its five-year contract with the Centers for Medicaid and Medicare Services. Closing of the facility resulted in a loss of 850 jobs.

Top employers

According to Wentzville's 2020 Popular Annual Financial Report, the top employers in the city were:

# Employer # of Employees
1 General Motors 3,399
2 Wentzville R-IV School District 1,879
3 TVS Supply Chain Solutions 550
4 etrailer Corp. 436
5 City of Wentzville 316
6 Compass Health Network 274
7 Rapid Response 265
8 SSM St. Joseph Health Center 230
9 Lear Corporation 195
10 RK Stratman Company Inc. 160


The Wentzville R-IV School District covers Wentzville, Lake St. Louis, Foristell, Dardenne Prairie and parts of O'Fallon. There are three public high schools in the Wentzville District, Wentzville Holt High School, Wentzville Timberland High School, and Liberty High School. Liberty High School is in neighboring Lake St. Louis.

Catholic schools in Wentzville include St. Patrick School which hosts preschool through eighth grade. Immanuel Lutheran School is a private Christian school off Highway N. Immanuel offers classes for children from preschool through 8th Grade. It is a Lutheran Exemplary status school.

Lindenwood University has a satellite campus located in the building that was formerly home to the Southern Air Restaurant, which after many years as a popular stop for travelers between St. Louis and Columbia, Missouri was last owned by Chuck Berry.

Midwest University, a primarily Korean-American, Christian institution offers undergraduate and graduate degrees in Wentzville.

Urshan College and Urshan Graduate School of Theology, educational institutions owned and operated by the United Pentecostal Church International, offer undergraduate and graduate degrees in Wentzville.

Wentzville has a public library, a branch of the St. Charles City-County Library.

Notable people

Chuck Berry 1957
Chuck Berry owned Wentzville property since 1957 and died there in 2017.
  • Dan Alexander – former American football fullback and linebacker
  • Ellene Alice Bailey – 19th-century American designer and inventor
  • Montee Ball – former American football running back for the Denver Broncos
  • Chuck Berry – pioneering rock and roll singer and guitarist; member of the initial class inducted into the Rock and Roll Hall of Fame
  • Ross Detwiler – Major League Baseball pitcher (Nationals, Braves, Rangers, and Indians)
  • Ron Hunt – former Major League Baseball player
  • Tim Melville – Major League Baseball pitcher (Reds, Twins, Padres, and Rockies)
  • Nathan Orf – baseball player for the Milwaukee Brewers
  • Emil John Raddatz – Prussian immigrant who became a miner, politician, and businessman
  • Justin Skaggs – former American football player
  • Bryan Spencer – former member of the Missouri House of Representatives
  • Kyle Weatherman – NASCAR driver

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