Frontenac, Missouri

Frontenac, Missouri
Plaza Frontenac, October 2017
Location of Frontenac, Missouri
U.S. Census reference map.
Coordinates: 38°37′48″N 90°25′08″W / 38.63000°N 90.41889°W / 38.63000; -90.41889
CountryUnited States
StateMissouri
CountySt. Louis
Government
  MayorPatrick "Pat" Kilker
Area
  Total
2.88 sq mi (7.46 km2)
  Land2.88 sq mi (7.46 km2)
  Water0.00 sq mi (0.00 km2)
Elevation
640 ft (200 m)
Population
 (2020)
  Total
3,612
  Density1,253.73/sq mi (484.02/km2)
Time zoneUTC-6 (Central (CST))
  Summer (DST)UTC-5 (CDT)
ZIP code
63131
Area code314
FIPS code29-26110
GNIS feature ID2394829
WebsiteFrontenac, Missouri

Frontenac is a city in St. Louis County, Missouri, United States. 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.