St. Augustine, Illinois Population 2024

112

St. Augustine is a city located in Knox County Illinois. St. Augustine has a 2024 population of 112. St. Augustine is currently declining at a rate of -0.88% annually and its population has decreased by -5.08% since the most recent census, which recorded a population of 118 in 2020.

The average household income in St. Augustine is $49,597 with a poverty rate of 13.6%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in St. Augustine is 54.5 years, 55.3 years for males, and 54.1 years for females.

St. Augustine Demographics

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

  • White: 99.2%
  • Two or more races: 0.8%
  • Black or African American: 0%
  • Native American: 0%
  • Asian: 0%
  • Native Hawaiian or Pacific Islander: 0%
  • Other race: 0%
Land Area (mi²)
0.6 sq mi
Density (mi²)
188.80/sq mi
Growth Since 2020
-5.08% (-6)
The current population of St. Augustine, Illinois is 112 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 118.

St. Augustine, Illinois Population 2024

Population by Race

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Race
Population
Percentage (of total)
White12499.2%
Two or more races10.8%
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. Augustine Population by Race

St. Augustine Population Pyramid 2024

St. Augustine Median Age

54.5

Total

55.3

Male

54.1

Female

St. Augustine Adults

There are 105 adults, (25 of whom are seniors) in St. Augustine.

St. Augustine Age Dependency

56.3

Age Dependency Ratio

31.3

Old Age Dependency Ratio

25

Child Dependency Ratio

St. Augustine Sex Ratio

Female6048%
Male6552%

St. Augustine Population by Age

St. Augustine Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All622.0287.112.9
Married272.111000
Non Family261.0469.230.8
Female94.561000
Male0000

2.72

Average Family Size

2.02

Average Household Size

87.1%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

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

St. Augustine Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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The highest rate of high school graduation is among 2+ races people with a rate of 100%.

The highest rate of bachelors degrees is among 2+ races people with a rate of 100%.

St. Augustine Educational Attainment by Race

All

Male

Female

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$24,792

Average Earnings

$50,625

Average Male

$22,917

Average Female

St. Augustine Earnings by Educational Attainment

St. Augustine Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

St. Augustine Language

99.1% of St. Augustine residents speak only English, while 0.9% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 0.9% of the population.

St. Augustine Language

St. Augustine Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White1181714.41%

13.6%

Overall Poverty Rate

20%

Male Poverty Rate

6.67%

Female Poverty Rate

Poverty in St. Augustine

The race most likely to be in poverty in St. Augustine is White, with 14.41% below the poverty level.

The race least likely to be in poverty in St. Augustine is White, with 14.41% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 13.16%. Among those working part-time, it was 12.5%, and for those that did not work, the poverty rate was 16.28%.

St. Augustine Poverty

rate

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Rate
Poverty
High School17.65%
Some College14.29%
Less Than 9th Grade0%
Bachelors or Greater0%

St. Augustine Poverty Rate by Education

rate

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Rate
Poverty
Male Employed17.39%
Female Employed12.12%
Male Unemployed0%
Female Unemployed0%

St. Augustine Poverty Rate by Employment Status and Sex

St. Augustine Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

St. Augustine Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

50.5%

Overall Marriage Rate

49.1%

Male Marriage Rate

52.1%

Female Marriage Rate

St. Augustine Married by Age and Sex

male

female

St. Augustine 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 55-64.

St. Augustine Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

St. Augustine Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

10

Number of Veterans

8

Male Veterans

2

Female Veterans

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St. Augustine Veterans by War

count

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St. Augustine Veterans by Age

count

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St. Augustine Veterans by Race

St. Augustine Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

20%

Veteran Poverty Rate

0%

Veteran Disability Rate

St. Augustine Veterans by Education

LaborForceParticipation

56.2%

Labor Force Participation

53.3%

Employment Rate

5.1%

Unemployment Rate

St. Augustine Employment by Age

LaborForceParticipation

St. Augustine Employment by Race

LaborForceParticipation

St. Augustine 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

85.6%

Born in St. Augustine

99.2%

Native Born

0.8%

Foreign Born

0%

Non Citizen

0.8%

Naturalized

Place of Birth

99.2% of St. Augustine residents were born in the United States, with 85.6% 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 Latin America.

St. Augustine Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
2029104-2-1.89%
2028106-1-0.93%
2027107-2-1.83%
2026109-1-0.91%
2025110-2-1.79%
2024112-1-0.88%
2023113-2-1.74%
2022115-2-1.71%
2021117-1-0.85%
202011865.36%
2019112-1-0.88%
2018113-1-0.88%
2017114-3-2.56%
2016117-1-0.85%
2015118-1-0.84%
201411900%
2013119-1-0.83%
2012120-1-0.83%
201112100%
201012100%

St. Augustine Population by Year