Missouri · Census place 2926110

Frontenac, Missouri

Frontenac is a city in St. Louis County, Missouri with an estimated 3,777 residents on July 1, 2024. It is the 167th largest of 338 incorporated places of 1,000+ people in the state.

Population 2024: 3,777; #167 of 338 in Missouri
Change since 2020: +4.3%; +157 people
Land area: 2.9 sq mi
Density: 1,311 / sq mi; State median 1,448

Orange pin: Frontenac. Shaded: its county. Dark pin: Jefferson City.

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Tools and pages that start from Frontenac

Frontenac population, 2020 to 2024

Frontenac added 157 residents from July 2020 to July 2024, a change of +4.3%. In the latest year it moved by +43.

July 1 estimates. The April 2020 estimates base was 3,609. The axis starts above zero so yearly changes are visible.

Frontenac covers 2.88 square miles of land, for 1,311 people per square mile of land. The median Missouri place of 5,000+ has 1,448, so Frontenac is close to the typical town.

What county Frontenac is in

All of Frontenac's residents live in St. Louis County, which had 992,929 residents in 2024. Frontenac holds 0.4% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Frontenac

1 ZIP Code Tabulation Area (ZCTA) overlaps Frontenac by at least 10% of the ZCTA's or the city's land: 63131. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.

Where Frontenac is

The Census internal point of Frontenac is at 38.630100, -90.419000. Jefferson City, the capital, is 94.8 miles W in a straight line. The nearest larger place is Ladue, MO (8,937 people), 1.9 miles away. The nearest city of 100,000 or more is St. Louis, MO, 9.4 miles away.

Internal point

Decimal: 38.630100, -90.419000
DMS: 38°37'48.36"N 90°25'8.40"W
UTM: 15N 724669.2E 4278890.0N
Geohash: 9yzey2qus
Plus code: 86CFJHJJ+2C

Daylight in Frontenac

At 38.63° N, Frontenac gets about 14 h 52 min of daylight around the June solstice and 9 h 28 min around the December solstice, a swing of 5 h 24 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Frontenac

The eight nearest incorporated places of 1,000+ in Missouri, measured between internal points. The closest is Ladue, 1.9 miles away, with 8,937 people.

Questions people ask

What is the population of Frontenac, MO?

3,777 on July 1, 2024, in the Census Vintage 2024 estimates. That is up 157 (4.3%) from 3,620 in July 2020.

What county is Frontenac in?

St. Louis County. All of its residents live in that county.

What ZIP codes cover Frontenac?

1 ZIP Code Tabulation Area overlaps it by at least 10% of either area: 63131.

How far is Frontenac from Jefferson City?

94.8 miles (152.5 km) in a straight line, heading W from Frontenac.

What is the nearest larger city to Frontenac?

Ladue, MO, with 8,937 residents, 1.9 miles away between internal points.

Sources and data as of

Data as of: Census Vintage 2024 subcounty estimates (July 1, 2024), 2024 Gazetteer places, 2020 ZCTA to place relationship file.

How every number is computed: methodology. Spotted a wrong figure? Report an error.