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Frontenac, Missouri
Plaza Frontenac, October 2017
Plaza Frontenac, October 2017
Location of Frontenac, Missouri
Location of Frontenac, Missouri
U.S. Census reference map.
U.S. Census reference map.
Country United States
State Missouri
County St. Louis
 • Total 2.88 sq mi (7.45 km2)
 • Land 2.88 sq mi (7.45 km2)
 • Water 0.00 sq mi (0.00 km2)
574 ft (175 m)
 • Total 3,612
 • Density 1,254.2/sq mi (484.8/km2)
Time zone UTC-6 (Central (CST))
 • Summer (DST) UTC-5 (CDT)
ZIP code
Area code(s) 314
FIPS code 29-26110
GNIS feature ID 0756086
Website Frontenac, Missouri

Frontenac is a wealthy inner-ring suburb of St. Louis, located in St. Louis County, Missouri, United States. The signature landmark is Plaza Frontenac, a high-end mall featuring many prominent retailers such as Saks Fifth Avenue, Neiman Marcus, and Tiffany & Co., among others. The population was 3,612 at the 2020 census.

The community name is inspired by the New France governor Louis de Buade de Frontenac. Benjamin and Lora Wood, who laid out the community's core called Frontenac Estates, that consisted of 26 two-acre estates, had made frequent trips to Quebec. The community was incorporated as 217 acres (88 ha) in 1947 and annexed another 967 acres (391 ha) in 1948. The community still consists mostly of houses on one-acre lots. French architecture is encouraged in design.


Frontenac is located at 38°38′2″N 90°25′4″W / 38.63389°N 90.41778°W / 38.63389; -90.41778 (38.633752, -90.417901).

According to the United States Census Bureau, the city has a total area of 2.88 square miles (7.46 km2), all of it land.


Historical population
Census Pop.
1950 1,099
1960 3,089 181.1%
1970 3,920 26.9%
1980 3,654 −6.8%
1990 3,374 −7.7%
2000 3,483 3.2%
2010 3,482 0.0%
2020 3,612 3.7%
U.S. Decennial Census

2020 census

As of the 2020 census, there were 3,612 people and 1,305 households living in the city. The racial makeup of the city was 82.6% White (81.6% non-Hispanic White), 2.3% African American, 0.1% Native American, 9.3% Asian, 0.8% from other races, and 4.8% from two or more races. Hispanic or Latino of any race were 2.6% of the population.

2010 census

As of the census of 2010, there were 3,482 people, 1,267 households, and 1,036 families living in the city. The population density was 1,209.0 inhabitants per square mile (466.8/km2). There were 1,357 housing units at an average density of 471.2 per square mile (181.9/km2). The racial makeup of the city was 90.1% White, 2.6% African American, 0.1% Native American, 5.6% Asian, 0.3% from other races, and 1.2% from two or more races. Hispanic or Latino of any race were 1.5% of the population.

There were 1,267 households, of which 34.6% had children under the age of 18 living with them, 73.3% were married couples living together, 5.4% had a female householder with no husband present, 3.0% had a male householder with no wife present, and 18.2% were non-families. 16.1% of all households were made up of individuals, and 8.6% had someone living alone who was 65 years of age or older. The average household size was 2.70 and the average family size was 3.03.

The median age in the city was 49.2 years. 24.9% of residents were under the age of 18; 5.3% were between the ages of 18 and 24; 13.1% were from 25 to 44; 35.5% were from 45 to 64; and 21.3% were 65 years of age or older. The gender makeup of the city was 47.6% male and 52.4% female.


  • Ladue School District, a public school district serving Frontenac.
  • St. Joseph's Academy, an all-girls high school.
  • Chaminade College Preparatory School, an all-boys middle and high school.
  • Villa Duchesne and Oak Hill School, a Sacred Heart School for boys and girls grades JK-6 and young women grades 7-12.
  • Kirkwood School District, serves parts of South Frontenac.

See also

Kids robot.svg In Spanish: Frontenac (Misuri) para niños

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