Population

72,561

US Census estimate, July 2025

Median home value

$298,700

Owner-occupied units

St. Charles, MO

Missouri · 38.796° N, 90.515° W · 25 sq mi

St. Charles is a city in Missouri, with a population of 72,561 and about 2,875 residents per square mile. The median household earns $85,937 a year, and the median home is worth $298,700.

Conditions

Humidity & wind

—

UV index

—

Sunrise & sunset

—

Local time

—

Forgotten Flicks movie T-shirts on TeePublic

Size & density

Land area

25 sq mi

Water excluded

Population density

2,875

People per square mile

Rank by population

#566

Of cities on this site

Rank by area

#542

Of cities on this site

Money & housing

Median household income

$85,937

US median ≈ $78,538

Median gross rent

$1,251

Per month

Homeownership

68%

US ≈ 65%

Average commute

21.6 min

One way

People

Median age

38.6

US median 39.1

Bachelor's degree +

43.3%

Age 25 and over

Foreign born

6.2%

Households

30,362

2.2 people each

Climate · 2021–2025 average

Clear days 33^/yr Mostly or fully clear sky

Days with rain 149^/yr 0.01 in or more

Days with snow 20^/yr

Days above 90° 30^/yr

Below freezing 77^/yr

Annual rainfall 46.3ⁱⁿ Inches per year, scaled to 70 in — the rows above count days

Warmest month

July

Average high 88°F

Coldest month

January

Average low 24°F

What people here do for work

Education & health care 22.7^%

Manufacturing 14.1^%

Professional & business services 12.5^%

Retail trade 9.7^%

Top four industries · share of all workers · ACS 2024

Wealthiest person in Missouri

Name

David Steward

Forbes, Apr 2025

Net worth

$11.4B

As of 25 Apr 2025 — not live

Lives in

St. Louis

Source of wealth

IT services

Compiled from public reporting, not from an official dataset, and not independently verified.

Largest employer in Missouri · private sector

Employer

BJC HealthCare

Sector

Healthcare

Compiled from public reporting, not from an official dataset, and not independently verified. Government employers are excluded.

Largest public company in Missouri

Company

Centene

Revenue

$163.1B

Fiscal year 2024

Headquarters

St. Louis

Ticker

CNC

Compiled from public reporting, not from an official dataset, and not independently verified.

State of Missouri

State bird

Eastern Bluebird

State flower

White Hawthorn Blossom

State capital

Jefferson City

Nickname

The Show-Me State

Compare St. Charles with

Cities near St. Charles

St. Peters, MO5 mi · 61,479
Florissant, MO10 mi · 51,124
O'Fallon, MO11 mi · 96,101
St. Louis, MO18 mi · 278,144
Springfield, IL83 mi · 112,989
Columbia, MO98 mi · 130,851
Decatur, IL112 mi · 67,884
Bloomington, IL142 mi · 78,804