St. Peter, Illinois Population 2024

314

St. Peter is a city located in Fayette County Illinois. St. Peter has a 2024 population of 314. St. Peter is currently declining at a rate of -0.32% annually and its population has decreased by -1.88% since the most recent census, which recorded a population of 320 in 2020.

The average household income in St. Peter is $78,341 with a poverty rate of 11.76%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in St. Peter is 39.7 years, 36.8 years for males, and 41.2 years for females.

St. Peter Demographics

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

  • White: 97.58%
  • Two or more races: 2.42%
  • Black or African American: 0%
  • Native American: 0%
  • Asian: 0%
  • Native Hawaiian or Pacific Islander: 0%
  • Other race: 0%
Land Area (mi²)
0.5 sq mi
Density (mi²)
603.10/sq mi
Growth Since 2020
-1.88% (-6)
The current population of St. Peter, Illinois is 314 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 320.

St. Peter, Illinois Population 2024

Population by Race

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Race
Population
Percentage (of total)
White28297.58%
Two or more races72.42%
Black or African American00%
Native American00%
Asian00%
Native Hawaiian or Pacific Islander00%
Other race00%

White

Two or more races

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Other race

St. Peter Population by Race

St. Peter Population Pyramid 2024

St. Peter Median Age

39.7

Total

36.8

Male

41.2

Female

St. Peter Adults

There are 209 adults, (56 of whom are seniors) in St. Peter.

St. Peter Age Dependency

88.9

Age Dependency Ratio

36.6

Old Age Dependency Ratio

52.3

Child Dependency Ratio

St. Peter Sex Ratio

Female14349.48%
Male14650.52%

St. Peter Population by Age

St. Peter Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All1072.790.79.3
Married593.1988.111.9
Non Family331.1893.96.1
Female124.2591.78.3
Male33.671000

3.3

Average Family Size

2.7

Average Household Size

90.7%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

St. Peter 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. Peter Educational Attainment by Sex (over 25)

St. Peter Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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The highest rate of high school graduation is among white people with a rate of 93.48%.

The highest rate of bachelors degrees is among 2+ races people with a rate of 57.14%.

St. Peter Educational Attainment by Race

All

Male

Female

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$40,750

Average Earnings

$55,250

Average Male

$29,000

Average Female

St. Peter Earnings by Educational Attainment

St. Peter Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

St. Peter Language

99.25% of St. Peter residents speak only English, while 0.75% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 0.38% of the population.

St. Peter Language

St. Peter Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White2823412.06%

11.76%

Overall Poverty Rate

8.22%

Male Poverty Rate

15.38%

Female Poverty Rate

Poverty in St. Peter

The race most likely to be in poverty in St. Peter is White, with 12.06% below the poverty level.

The race least likely to be in poverty in St. Peter is White, with 12.06% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0%. Among those working part-time, it was 19.61%, and for those that did not work, the poverty rate was 17.44%.

St. Peter Poverty

rate

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Rate
Poverty
Less Than 9th Grade40%
Some College11.84%
High School9.52%
Bachelors or Greater0%

St. Peter Poverty Rate by Education

rate

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Rate
Poverty
Male Employed1.54%
Male Unemployed0%
Female Employed3.57%
Female Unemployed0%

St. Peter Poverty Rate by Employment Status and Sex

St. Peter Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

St. Peter Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

55.6%

Overall Marriage Rate

54.9%

Male Marriage Rate

56.4%

Female Marriage Rate

St. Peter Married by Age and Sex

male

female

St. Peter Marriage

The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 20-34.

St. Peter Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

St. Peter Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

10

Number of Veterans

10

Male Veterans

0

Female Veterans

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St. Peter Veterans by War

count

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St. Peter Veterans by Age

count

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St. Peter Veterans by Race

St. Peter Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

0%

Veteran Poverty Rate

40%

Veteran Disability Rate

St. Peter Veterans by Education

LaborForceParticipation

54.5%

Labor Force Participation

54.5%

Employment Rate

0%

Unemployment Rate

St. Peter Employment by Age

LaborForceParticipation

St. Peter Employment by Race

LaborForceParticipation

St. Peter 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

88.58%

Born in St. Peter

100%

Native Born

0%

Foreign Born

0%

Non Citizen

0%

Naturalized

Place of Birth

100% of St. Peter residents were born in the United States, with 88.58% having been born in Illinois. 0% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.

St. Peter Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
2029306-2-0.65%
2028308-1-0.32%
2027309-2-0.64%
2026311-1-0.32%
2025312-2-0.64%
2024314-1-0.32%
2023315-2-0.63%
2022317-2-0.63%
2021319-1-0.31%
2020320-19-5.6%
2019339-1-0.29%
2018340-2-0.58%
2017342-3-0.87%
2016345-4-1.15%
2015349-1-0.29%
2014350-2-0.57%
201335210.28%
2012351-2-0.57%
201135300%
201035300%

St. Peter Population by Year