St. Peters, Missouri Population 2023

59,042

St. Peters is a city located in St. Charles County Missouri. With a 2023 population of 59,042, it is the 11th largest city in Missouri and the 663rd largest city in the United States.St. Peters is currently growing at a rate of 0.78% annually and its population has increased by 2.36% since the most recent census, which recorded a population of 57,678 in 2020. Spanning over 22 miles, St. Peters has a population density of 2,635 people per square mile.

The average household income in St. Peters is $93,577 with a poverty rate of 4.75%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in St. Peters is 39.9 years, 38.2 years for males, and 41.5 years for females.

St. Peters Demographics

According to the most recent ACS, the racial composition of St. Peters was:

  • White: 88.8%
  • Black or African American: 5.13%
  • Two or more races: 3.05%
  • Asian: 2.53%
  • Native American: 0.27%
  • Other race: 0.22%
  • Native Hawaiian or Pacific Islander: 0%
The current population of St. Peters, Missouri is 59,042 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 57,678.

St. Peters, Missouri Population 2023

Population by Race

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White

Black or African American

Two or more races

Asian

Native American

Other race

Native Hawaiian or Pacific Islander

St. Peters Population by Race

St. Peters Population Pyramid 2023

St. Peters Median Age

39.9

Total

38.2

Male

41.5

Female

St. Peters Adults

There are 44,614 adults, (9,351 of whom are seniors) in St. Peters.

St. Peters Age Dependency

63.2

Age Dependency Ratio

26.5

Old Age Dependency Ratio

36.6

Child Dependency Ratio

St. Peters Sex Ratio

Female30,17252.44%
Male27,36447.56%

St. Peters Population by Age

St. Peters Renter vs Owner Occupied by Household Type

3.1

Average Family Size

2.52

Average Household Size

82.5%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

St. Peters Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

St. Peters Educational Attainment by Sex (over 25)

St. Peters Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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The highest rate of high school graduation is among other race people with a rate of 85.42%.

The highest rate of bachelors degrees is among other race people with a rate of 44.79%.

St. Peters Educational Attainment by Race

All

Male

Female

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$48,661

Average Earnings

$57,846

Average Male

$39,530

Average Female

St. Peters Earnings by Educational Attainment

St. Peters Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

St. Peters Language

95.07% of St. Peters residents speak only English, while 4.93% speak other languages. The non-English language spoken by the largest group is Asian and Pacific Island languages, which is spoken by 2.31% of the population.

St. Peters Language

St. Peters Poverty by Race

rate

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4.75%

Overall Poverty Rate

3.74%

Male Poverty Rate

4.02%

Female Poverty Rate

Poverty in St. Peters

The race most likely to be in poverty in St. Peters is Hispanic, with 14.23% below the poverty level.

The race least likely to be in poverty in St. Peters is White, with 4.22% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.97%. Among those working part-time, it was 4.62%, and for those that did not work, the poverty rate was 7.49%.

St. Peters Poverty

rate

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St. Peters Poverty Rate by Education

rate

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St. Peters Poverty Rate by Employment Status and Sex

St. Peters Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

St. Peters Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

55.7%

Overall Marriage Rate

58.4%

Male Marriage Rate

53.2%

Female Marriage Rate

St. Peters Married by Age and Sex

male

female

St. Peters Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 35-44.

St. Peters Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

St. Peters Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

3,640

Number of Veterans

3,371

Male Veterans

269

Female Veterans

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St. Peters Veterans by War

count

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St. Peters Veterans by Age

count

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St. Peters Veterans by Race

St. Peters Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

2.32%

Veteran Poverty Rate

23.97%

Veteran Disability Rate

St. Peters Veterans by Education

LaborForceParticipation

70.9%

Labor Force Participation

68.6%

Employment Rate

3.1%

Unemployment Rate

St. Peters Employment by Age

LaborForceParticipation

St. Peters Employment by Race

LaborForceParticipation

St. Peters Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

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

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

71.01%

Born in St. Peters

96.4%

Native Born

3.35%

Foreign Born

1.62%

Non Citizen

1.73%

Naturalized

Place of Birth

96.4% of St. Peters residents were born in the United States, with 71.01% having been born in Missouri. 1.62% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

St. Peters Place of Birth

Note: data after 2021 is projected based on recent change
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St. Peters Population by Year