Grundy County, Illinois Population 2024

54,007

Grundy County, Illinois's estimated 2024 population is 54,007 with a growth rate of 0.8% in the past year according to the most recent United States census data. Grundy County, Illinois is the 25th largest county in Illinois. The 2010 population was 50,155 and has seen a growth of 7.68% since that time.

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
202956,1524290.77%
202855,7234290.78%
202755,2944290.78%
202654,8654290.79%
202554,4364290.79%
202454,0074290.8%
202353,5784290.81%
202253,1491900.36%
202152,9594430.84%
202052,5161,4852.91%
201951,031190.04%
201851,0123850.76%
201750,6273020.6%
201650,325-33-0.07%
201550,358770.15%
201450,281980.2%
201350,183220.04%
201250,161580.12%
201150,103-52-0.1%
201050,15500%
199032,3371,7555.74%
198030,5824,04715.25%
197026,5354,18518.72%
196022,3503,13316.3%
195019,2178194.45%
194018,398-280-1.5%
193018,678980.53%
192018,580-5,582-23.1%
191024,162260.11%
190024,1363,11214.8%
189021,0244,29225.65%
188016,7321,79412.01%
187014,9384,55943.93%
186010,3797,356243.33%
18503,023-53,129-94.62%
2024 Growth Rate
0.8% (429)
County Seat
Morris
2020 Population
52,516
Area
418 mi²
Density
129 people/mi²
Growth Since 2020
2.84% (1,491)
Founded
February 17, 1841

Population by Race

Race
Population
Percentage (of total)
White46,77288.38%
Two or more races3,3066.25%
Other race1,4432.73%
Black or African American1,1272.13%
Asian2310.44%
Native American410.08%
Native Hawaiian or Pacific Islander00%

White

Two or more races

Other race

Black or African American

Asian

Native American

Native Hawaiian or Pacific Islander

Grundy County, Illinois Population by Race

Grundy County, Illinois Population Pyramid 2024

Grundy County, Illinois Median Age

38.6

Total

38

Male

39.2

Female

Grundy County, Illinois Adults

There are 39,848 adults, (7,727 of whom are seniors) in Grundy County, Illinois.

Grundy County, Illinois Age Dependency

64.8

Age Dependency Ratio

24.1

Old Age Dependency Ratio

40.7

Child Dependency Ratio

Grundy County, Illinois Sex Ratio

Female26,29249.68%
Male26,62850.32%

Grundy County, Illinois Population by Age

Grundy County, Illinois Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All20,5182.5675.824.2
Married10,9943.2488.211.8
Non Family6,5091.2357.542.5
Female1,9202.8965.434.6
Male1,0953.047822

3.12

Average Family Size

2.56

Average Household Size

75.8%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Grundy County, Illinois Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade1,3483.83%
Associates Degree3,61610.27%
Bachelors Degree5,74216.3%
Graduate Degree2,7897.92%
High School Graduate11,96333.97%
Less Than 9th Grade6971.98%
Some College9,06325.73%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Grundy County, Illinois Educational Attainment by Sex (over 25)

Grundy County, Illinois Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White30,67629,3217,590
Hispanic3,0512,533523
2+ Races1,5171,373329
Other Race904607156
Black57648397
Asian195152133
Native American261910

The highest rate of high school graduation is among white people with a rate of 95.58%.

The highest rate of bachelors degrees is among asian people with a rate of 68.21%.

Grundy County, Illinois Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$88,268$129,044$70,189
Graduate Degree$83,523$91,583$79,605
High School Graduate$47,333$64,010$34,146
Less Than 9th Grade$40,804$53,266$26,176
Overall$59,106$75,127$43,746
Some College$50,885$71,430$36,937

$59,106

Average Earnings

$75,127

Average Male

$43,746

Average Female

Grundy County, Illinois Earnings by Educational Attainment

Grundy County, Illinois Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Grundy County, Illinois Language

92.34% of Grundy County, Illinois residents speak only English, while 7.66% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 6.07% of the population.

Grundy County, Illinois Language

Grundy County, Illinois Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White43,7422,4895.69%
Hispanic6,0755118.41%
Multiple3,25435210.82%
Black1,07918316.96%
Other1,4401157.99%
Asian222114.95%
Native41717.07%

6.3%

Overall Poverty Rate

4.65%

Male Poverty Rate

7.98%

Female Poverty Rate

Poverty in Grundy County, Illinois

The race most likely to be in poverty in Grundy County, Illinois is Native, with 17.07% below the poverty level.

The race least likely to be in poverty in Grundy County, Illinois is Asian, with 4.95% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.84%. Among those working part-time, it was 8.51%, and for those that did not work, the poverty rate was 9.59%.

Grundy County, Illinois Poverty

rate

Rate
Poverty
Less Than 9th Grade15.17%
High School7.05%
Some College4.94%
Bachelors or Greater1.43%

Grundy County, Illinois Poverty Rate by Education

rate

Rate
Poverty
Female Unemployed23.23%
Male Unemployed12.98%
Female Employed4.44%
Male Employed2.82%

Grundy County, Illinois Poverty Rate by Employment Status and Sex

Grundy County, Illinois Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$109,922$129,321
Households$93,060$111,929
Married Families$117,762$-999,999,999
Non Families$54,411$69,809

mean

median

Income by Household Type

Grundy County, Illinois Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

53.8%

Overall Marriage Rate

54.6%

Male Marriage Rate

53.0%

Female Marriage Rate

Grundy County, Illinois Married by Age and Sex

male

female

Grundy County, Illinois 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 35-44.

Grundy County, Illinois Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Grundy County, Illinois Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

3,152

Number of Veterans

2,813

Male Veterans

339

Female Veterans

War
Veterans
Vietnam882
Second Gulf War875
First Gulf War841
Korea62
World War II14

Grundy County, Illinois Veterans by War

count

Age Group
Veterans
35 to 541,001
65 to 74661
75+593
55 to 64549
18 to 34348

Grundy County, Illinois Veterans by Age

count

Name
Veterans
% of Total
White2,9798.37%
Hispanic2476.27%
2+ Races1316.44%
Other Race201.74%
Black182.15%
Native American415.38%

Grundy County, Illinois Veterans by Race

Grundy County, Illinois Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

2.95%

Veteran Poverty Rate

16.56%

Veteran Disability Rate

Grundy County, Illinois Veterans by Education

LaborForceParticipation

68.2%

Labor Force Participation

65.1%

Employment Rate

4.5%

Unemployment Rate

Grundy County, Illinois Employment by Age

LaborForceParticipation

Grundy County, Illinois Employment by Race

LaborForceParticipation

Grundy County, Illinois 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

83.68%

Born in Grundy County, Illinois

96.52%

Native Born

3.48%

Foreign Born

1.21%

Non Citizen

2.27%

Naturalized

Place of Birth

96.52% of Grundy County, Illinois residents were born in the United States, with 83.68% having been born in Illinois. 1.21% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Grundy County, Illinois Place of Birth

Sources