Flat Rock, Illinois Population 2024

313

Flat Rock Demographics

According to the most recent ACS, the racial composition of Flat Rock was:

  • White: 97.79%
  • Two or more races: 2.21%
  • Black or African American: 0%
  • Native American: 0%
  • Asian: 0%
  • Native Hawaiian or Pacific Islander: 0%
  • Other race: 0%
Land Area (mi²)
0.9 sq mi
Density (mi²)
365.70/sq mi
Growth Since 2020
-3.4% (-11)
The current population of Flat Rock, Illinois is 313 based on our projections of the latest US Census estimates (released May 2024). The last official US Census in 2020 recorded the population at 324.

Population by Race

Race
Population
Percentage (of total)
White35497.79%
Two or more races82.21%
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

Flat Rock Population by Race

Flat Rock Population Pyramid 2024

Flat Rock Median Age

37.7

Total

40.3

Male

35.2

Female

Flat Rock Adults

There are 284 adults, (62 of whom are seniors) in Flat Rock.

Flat Rock Age Dependency

63.1

Age Dependency Ratio

27.9

Old Age Dependency Ratio

35.1

Child Dependency Ratio

Flat Rock Sex Ratio

Female18350.55%
Male17949.45%

Flat Rock Population by Age

Flat Rock Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All1482.4587.212.8
Married833.2486.713.3
Non Family511.1284.315.7
Male72.711000
Female72.431000

3.06

Average Family Size

2.45

Average Household Size

87.2%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Flat Rock Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade197.72%
Associates Degree3614.63%
Bachelors Degree2710.98%
Graduate Degree62.44%
High School Graduate8132.93%
Less Than 9th Grade10.41%
Some College7630.89%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Flat Rock Educational Attainment by Sex (over 25)

Flat Rock Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White24322333
2+ Races330

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 white people with a rate of 13.58%.

Flat Rock Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$46,875$45,833$57,083
Graduate Degree$0$0$0
High School Graduate$56,250$56,042$0
Less Than 9th Grade$0$0$0
Overall$46,250$49,250$27,292
Some College$39,107$48,938$26,042

$46,250

Average Earnings

$49,250

Average Male

$27,292

Average Female

Flat Rock Earnings by Educational Attainment

Flat Rock Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Flat Rock Language

100% of Flat Rock residents speak only English, while 0% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 0% of the population.

Flat Rock Language

Flat Rock Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White3525214.77%

14.44%

Overall Poverty Rate

18.08%

Male Poverty Rate

10.93%

Female Poverty Rate

Poverty in Flat Rock

The race most likely to be in poverty in Flat Rock is White, with 14.77% below the poverty level.

The race least likely to be in poverty in Flat Rock is White, with 14.77% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.71%. Among those working part-time, it was 20.59%, and for those that did not work, the poverty rate was 26.21%.

Flat Rock Poverty

rate

Rate
Poverty
High School13.58%
Some College11.61%
Less Than 9th Grade10%
Bachelors or Greater0%

Flat Rock Poverty Rate by Education

rate

Rate
Poverty
Male Unemployed100%
Male Employed7.53%
Female Employed7.41%
Female Unemployed0%

Flat Rock Poverty Rate by Employment Status and Sex

Flat Rock Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$65,417$71,774
Households$49,881$61,688
Married Families$69,250$-999,999,999
Non Families$47,917$42,027

mean

median

Income by Household Type

Flat Rock Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

67.5%

Overall Marriage Rate

57.7%

Male Marriage Rate

78.9%

Female Marriage Rate

Flat Rock Married by Age and Sex

male

female

Flat Rock 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 55-64.

Flat Rock Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Flat Rock Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

15

Number of Veterans

15

Male Veterans

0

Female Veterans

War
Veterans
Vietnam7
First Gulf War2
Korea2
Second Gulf War0
World War II0

Flat Rock Veterans by War

count

Age Group
Veterans
75+9
65 to 746
18 to 340
35 to 540
55 to 640

Flat Rock Veterans by Age

count

Name
Veterans
% of Total
White155.34%

Flat Rock Veterans by Race

Flat Rock Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

26.67%

Veteran Poverty Rate

46.67%

Veteran Disability Rate

Flat Rock Veterans by Education

LaborForceParticipation

64.6%

Labor Force Participation

60.4%

Employment Rate

6.5%

Unemployment Rate

Flat Rock Employment by Age

LaborForceParticipation

Flat Rock Employment by Race

LaborForceParticipation

Flat Rock 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

66.85%

Born in Flat Rock

100%

Native Born

0%

Foreign Born

0%

Non Citizen

0%

Naturalized

Place of Birth

100% of Flat Rock residents were born in the United States, with 66.85% 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.

Flat Rock Place of Birth

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
2029299-3-0.99%
2028302-3-0.98%
2027305-2-0.65%
2026307-3-0.97%
2025310-3-0.96%
2024313-3-0.95%
2023316-5-1.56%
2022321-3-0.93%
202132400%
2020324175.54%
2019307-5-1.6%
2018312-3-0.95%
201731500%
2016315-5-1.56%
201532000%
2014320-3-0.93%
2013323-3-0.92%
2012326-4-1.21%
2011330-1-0.3%
201033100%

Flat Rock Population by Year