St. Charles County, Missouri Population 2022

St. Charles County, Missouri's estimated population is 414,218 with a growth rate of 1.09% in the past year according to the most recent United States census data. St. Charles County, Missouri is the 3rd largest county in Missouri. The 2010 Population was 360,485 and has seen a growth of 14.91% since this time.

Note: 2021 and 2022 data is projected
map placeholder

St. Charles County, Missouri Population Growth

Population by Race

Loading...

St. Charles County, Missouri Population by Race

St. Charles County, Missouri Population Pyramid 2022

Loading...

St. Charles County, Missouri Median Age

39


Total

37.8


Male

40.2


Female

St. Charles County, Missouri Adults

There are 305,584 adults, (60,571 of whom are seniors) in St. Charles County, Missouri.

St. Charles County, Missouri Age Dependency

Age Dependency Ratio

24.7

Old Age Dependency Ratio

37.9

Child Dependency Ratio

St. Charles County, Missouri Sex Ratio

Female

202,565

50.84%

Male

195,907

49.16%

St. Charles County, Missouri Population by Age

St. Charles County, Missouri Renter vs Owner Occupied by Household Type

map placeholder

St. Charles County, Missouri Household Types

81.6%

Rate of Home Ownership

St. Charles County, Missouri Households and Families

3.1

Average Family Size

2.62

Average Household Size

Loading...

St. Charles County, Missouri Households by Type

Loading...
Loading...

St. Charles County, Missouri Educational Attainment by Sex (over 25)

St. Charles County, Missouri Educational Attainment by Race

Loading...

The highest rate of high school graduation is among islander people with a rate of 100.00%.

The highest rate of bachelors degrees is among asian people with a rate of 62.38%.

St. Charles County, Missouri Educational Attainment by Race

Loading...

$51,448

Average Earnings

$61,971

Average Male

$41,349

Average Female

St. Charles County, Missouri Earnings by Educational Attainment

St. Charles County, Missouri Language by Age

Loading...

St. Charles County, Missouri Language

94.50% of St. Charles County, Missouri residents speak only English, while 5.50% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 2.29% of the population.

St. Charles County, Missouri Language

St. Charles County, Missouri Poverty by Race

Loading...

4.79%

Overall Poverty Rate

4.03%

Male Poverty Rate

5.54%

Female Poverty Rate

Poverty in St. Charles County, Missouri

The race most likely to be in poverty in St. Charles County, Missouri is Islander, with 54.39% below the poverty level.

The race least likely to be in poverty in St. Charles County, Missouri is Other, with NaN% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.92%. Among those working part-time, it was 7.05%, and for those that did not work, the poverty rate was 8.84%.

St. Charles County, Missouri Poverty

Loading...

St. Charles County, Missouri Poverty Rate by Education

Loading...

St. Charles County, Missouri Poverty Rate by Employment Status and Sex

St. Charles County, Missouri Income by Household Type

Loading...
Loading...

Income by Household Type

St. Charles County, Missouri Marital Status

map placeholder

Marriage Rates

56.5%

Overall Marriage Rate

58.1%

Male Marriage Rate

54.9%

Female Marriage Rate

St. Charles County, Missouri Married by Age and Sex

Loading...

St. Charles County, Missouri Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 45-54.

St. Charles County, Missouri Marital Status by Race

map placeholder

St. Charles County, Missouri Marital Status

Loading...

23,046

Number of Veterans

Male Veterans

Female Veterans

St. Charles County, Missouri Veterans by War

Loading...

St. Charles County, Missouri Veterans by Age

Loading...

St. Charles County, Missouri Veterans by Race

St. Charles County, Missouri Veterans by Education

Loading...

2.76%

Veteran Poverty Rate

25.00%

Veteran Disability Rate

St. Charles County, Missouri Veterans by Education

Loading...

69.6%

Labor Force Participation

67.5%

Employment Rate

3%

Unemployment Rate

St. Charles County, Missouri Employment by Age

Loading...

St. Charles County, Missouri Employment by Race

Loading...

St. Charles County, Missouri Employment by Education

Origin of Non-Citizens

Loading...

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Loading...

68.88%

Born in St. Charles County, Missouri

96.06%

Native Born

3.94%

Foreign Born

1.84%

Non Citizen

2.10%

Naturalized

Place of Birth

96.06% of St. Charles County, Missouri residents were born in the United States, with 68.88% having been born in Missouri. 1.84% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

St. Charles County, Missouri Place of Birth

  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990

Sources