Big Rock township, Illinois Population 2024

1,736

Big Rock township Demographics

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

  • White: 95.31%
  • Two or more races: 3.2%
  • Asian: 1.21%
  • Other race: 0.17%
  • Native American: 0.11%
  • Black or African American: 0%
  • Native Hawaiian or Pacific Islander: 0%
Land Area (mi²)
35.1 sq mi
Density (mi²)
49.40/sq mi
Growth Since 2020
-2.36% (-42)
The current population of Big Rock township, Illinois is 1,736 based on our projections of the latest US Census estimates (released May 2024). The last official US Census in 2020 recorded the population at 1,778.

Population by Race

Race
Population
Percentage (of total)
White1,72695.31%
Two or more races583.2%
Asian221.21%
Other race30.17%
Native American20.11%
Black or African American00%
Native Hawaiian or Pacific Islander00%

White

Two or more races

Asian

Other race

Native American

Black or African American

Native Hawaiian or Pacific Islander

Big Rock township Population by Race

Big Rock township Population Pyramid 2024

Big Rock township Median Age

39.2

Total

40.9

Male

37.9

Female

Big Rock township Adults

There are 1,324 adults, (292 of whom are seniors) in Big Rock township.

Big Rock township Age Dependency

75.5

Age Dependency Ratio

28.3

Old Age Dependency Ratio

47.2

Child Dependency Ratio

Big Rock township Sex Ratio

Female83746.22%
Male97453.78%

Big Rock township Population by Age

Big Rock township Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All6532.7790.79.3
Married4703.21937
Non Family1371.382.517.5
Male312.261000
Female153.5373.326.7

3.15

Average Family Size

2.77

Average Household Size

90.7%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Big Rock township Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade252.02%
Associates Degree1139.14%
Bachelors Degree24519.81%
Graduate Degree987.92%
High School Graduate38931.45%
Less Than 9th Grade00%
Some College36729.67%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Big Rock township Educational Attainment by Sex (over 25)

Big Rock township Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White1,1381,116322
Hispanic55525
2+ Races25257
Asian22229
Other Race300

The highest rate of high school graduation is among asian people with a rate of 100%.

The highest rate of bachelors degrees is among asian people with a rate of 40.91%.

Big Rock township Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$63,417$80,000$45,563
Graduate Degree$109,250$177,083$101,250
High School Graduate$70,199$71,165$42,778
Less Than 9th Grade$0$0$0
Overall$69,018$80,729$45,063
Some College$71,786$89,948$34,688

$69,018

Average Earnings

$80,729

Average Male

$45,063

Average Female

Big Rock township Earnings by Educational Attainment

Big Rock township Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Big Rock township Language

98.11% of Big Rock township residents speak only English, while 1.89% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 1.22% of the population.

Big Rock township Language

Big Rock township Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White1,647885.34%

4.86%

Overall Poverty Rate

3.18%

Male Poverty Rate

6.81%

Female Poverty Rate

Poverty in Big Rock township

The race most likely to be in poverty in Big Rock township is White, with 5.34% below the poverty level.

The race least likely to be in poverty in Big Rock township is White, with 5.34% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.87%. Among those working part-time, it was 6.88%, and for those that did not work, the poverty rate was 7.23%.

Big Rock township Poverty

rate

Rate
Poverty
High School7.46%
Some College5.63%
Bachelors or Greater0.58%
Less Than 9th Grade0%

Big Rock township Poverty Rate by Education

rate

Rate
Poverty
Female Unemployed72.22%
Male Unemployed15%
Male Employed4.77%
Female Employed0%

Big Rock township Poverty Rate by Employment Status and Sex

Big Rock township Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$113,226$125,000
Households$104,797$124,642
Married Families$113,871$-999,999,999
Non Families$104,053$123,180

mean

median

Income by Household Type

Big Rock township Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

71.2%

Overall Marriage Rate

66.5%

Male Marriage Rate

76.6%

Female Marriage Rate

Big Rock township Married by Age and Sex

male

female

Big Rock township Marriage

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

Big Rock township Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Big Rock township Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

54

Number of Veterans

54

Male Veterans

0

Female Veterans

War
Veterans
Vietnam28
First Gulf War11
Second Gulf War4
World War II3
Korea2

Big Rock township Veterans by War

count

Age Group
Veterans
75+19
65 to 7417
35 to 547
55 to 647
18 to 344

Big Rock township Veterans by Age

count

Name
Veterans
% of Total
White534.17%
2+ Races13.45%

Big Rock township Veterans by Race

Big Rock township Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

0%

Veteran Poverty Rate

48.15%

Veteran Disability Rate

Big Rock township Veterans by Education

LaborForceParticipation

67%

Labor Force Participation

64.1%

Employment Rate

4.3%

Unemployment Rate

Big Rock township Employment by Age

LaborForceParticipation

Big Rock township Employment by Race

LaborForceParticipation

Big Rock township 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

82.05%

Born in Big Rock township

97.96%

Native Born

2.04%

Foreign Born

0.66%

Non Citizen

1.38%

Naturalized

Place of Birth

97.96% of Big Rock township residents were born in the United States, with 82.05% having been born in Illinois. 0.66% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.

Big Rock township Place of Birth

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
20291,696-8-0.47%
20281,704-8-0.47%
20271,712-8-0.47%
20261,720-8-0.46%
20251,728-8-0.46%
20241,736-8-0.46%
20231,744-8-0.46%
20221,752-16-0.9%
20211,768-10-0.56%
20201,778-70-3.79%
20191,848-19-1.02%
20181,867-15-0.8%
20171,882-4-0.21%
20161,886-2-0.11%
20151,88840.21%
20141,884130.69%
20131,87110.05%
20121,87060.32%
20111,86480.43%
20101,85600%

Big Rock township Population by Year