Adams County, Illinois Population 2024

64,326

Adams County, Illinois's estimated 2024 population is 64,326 with a growth rate of -0.18% in the past year according to the most recent United States census data. Adams County, Illinois is the 23rd largest county in Illinois. The 2010 population was 67,158 and has seen a growth of -4.22% since that time.

Note: data after 2022 is projected based on recent change

37 Rows

Year
Population
Growth
Change
202963,751-115-0.18%
202863,866-115-0.18%
202763,981-115-0.18%
202664,096-115-0.18%
202564,211-115-0.18%
202464,326-115-0.18%
202364,441-115-0.18%
202264,556-508-0.78%
202165,064-550-0.84%
202065,6142120.32%
201965,402-201-0.31%
201865,603-470-0.71%
201766,073-417-0.63%
201666,490-360-0.54%
201566,850-133-0.2%
201466,983-22-0.03%
201367,005-144-0.21%
201267,149-65-0.1%
201167,214560.08%
201067,15800%
199066,090-5,532-7.72%
198071,6227611.07%
197070,8612,3943.5%
196068,4673,7775.84%
195064,690-539-0.83%
194065,2292,4453.89%
193062,7845960.96%
192062,188-2,400-3.72%
191064,588-2,470-3.68%
190067,0585,1708.35%
189061,8882,7534.66%
188059,1352,7734.92%
187056,36215,03936.39%
186041,32314,81555.89%
185026,50812,03283.12%
184014,47612,290562.21%
18302,186-61,565-96.57%
2024 Growth Rate
-0.18% (-115)
County Website
Adams County
County Seat
Quincy
2020 Population
65,614
Area
855 mi²
Density
75 people/mi²
Growth Since 2020
-1.96% (-1,288)
Founded
1825

Population by Race

Race
Population
Percentage (of total)
White59,98091.46%
Black or African American2,5783.93%
Two or more races2,2503.43%
Asian4870.74%
Other race2390.36%
Native American400.06%
Native Hawaiian or Pacific Islander90.01%

White

Black or African American

Two or more races

Asian

Other race

Native American

Native Hawaiian or Pacific Islander

Adams County, Illinois Population by Race

Adams County, Illinois Population Pyramid 2024

Adams County, Illinois Median Age

41.3

Total

40.3

Male

42

Female

Adams County, Illinois Adults

There are 50,827 adults, (13,151 of whom are seniors) in Adams County, Illinois.

Adams County, Illinois Age Dependency

74.1

Age Dependency Ratio

34.9

Old Age Dependency Ratio

39.2

Child Dependency Ratio

Adams County, Illinois Sex Ratio

Female33,27250.73%
Male32,31149.27%

Adams County, Illinois Population by Age

Adams County, Illinois Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All27,4902.3372.227.8
Married12,9253.0289.210.8
Non Family10,3761.1858.241.8
Female2,8233.025446
Male1,3663.155.144.9

2.95

Average Family Size

2.33

Average Household Size

72.2%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Adams County, Illinois Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade2,3325.11%
Associates Degree4,4669.78%
Bachelors Degree8,16417.88%
Graduate Degree4,1299.04%
High School Graduate15,76534.53%
Less Than 9th Grade7061.55%
Some College10,09522.11%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

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

Adams County, Illinois Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White42,30839,74311,672
Black1,7061,51197
2+ Races879706231
Hispanic609565163
Asian330270181
Other Race14412951
Native American40260
Islander990

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

The highest rate of bachelors degrees is among asian people with a rate of 54.85%.

Adams County, Illinois Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$51,955$56,487$46,582
Graduate Degree$64,183$84,000$55,211
High School Graduate$37,948$45,631$30,313
Less Than 9th Grade$31,539$38,690$30,121
Overall$43,677$48,182$36,302
Some College$40,305$46,705$32,372

$43,677

Average Earnings

$48,182

Average Male

$36,302

Average Female

Adams County, Illinois Earnings by Educational Attainment

Adams County, Illinois Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Adams County, Illinois Language

97.31% of Adams County, Illinois residents speak only English, while 2.69% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.11% of the population.

Adams County, Illinois Language

Adams County, Illinois Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White58,3316,33210.86%
Black2,39965927.47%
Multiple2,23351523.06%
Hispanic1,13331427.71%
Asian434368.29%
Other22662.65%
Islander9222.22%

12.06%

Overall Poverty Rate

9.58%

Male Poverty Rate

14.47%

Female Poverty Rate

Poverty in Adams County, Illinois

The race most likely to be in poverty in Adams County, Illinois is Hispanic, with 27.71% below the poverty level.

The race least likely to be in poverty in Adams County, Illinois is Other, with 2.65% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.69%. Among those working part-time, it was 13.72%, and for those that did not work, the poverty rate was 24%.

Adams County, Illinois Poverty

rate

Rate
Poverty
Less Than 9th Grade30.27%
High School13.49%
Some College9.34%
Bachelors or Greater3.21%

Adams County, Illinois Poverty Rate by Education

rate

Rate
Poverty
Female Unemployed36.08%
Male Unemployed27.6%
Female Employed6.96%
Male Employed2.92%

Adams County, Illinois Poverty Rate by Employment Status and Sex

Adams County, Illinois Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$83,595$99,573
Households$63,767$81,360
Married Families$96,721$115,772
Non Families$38,116$48,180

mean

median

Income by Household Type

Adams County, Illinois Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

51.6%

Overall Marriage Rate

53.6%

Male Marriage Rate

49.7%

Female Marriage Rate

Adams County, Illinois Married by Age and Sex

male

female

Adams County, Illinois 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 45-54.

Adams County, Illinois Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Adams County, Illinois Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

4,233

Number of Veterans

3,826

Male Veterans

407

Female Veterans

War
Veterans
Vietnam1,428
First Gulf War1,022
Second Gulf War798
Korea432
World War II97

Adams County, Illinois Veterans by War

count

Age Group
Veterans
75+1,295
65 to 741,023
35 to 541,004
55 to 64577
18 to 34334

Adams County, Illinois Veterans by Age

count

Name
Veterans
% of Total
White3,9570.08390407328088886
Black1620.08428720083246619
2+ Races610.05611775528978841
Other Race460.23469387755102042
Hispanic370.04849279161205767
Islander70.7777777777777778

Adams County, Illinois Veterans by Race

Adams County, Illinois Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

7.11%

Veteran Poverty Rate

30.97%

Veteran Disability Rate

Adams County, Illinois Veterans by Education

LaborForceParticipation

65.9%

Labor Force Participation

63.3%

Employment Rate

3.9%

Unemployment Rate

Adams County, Illinois Employment by Age

LaborForceParticipation

Adams County, Illinois Employment by Race

LaborForceParticipation

Adams 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

76.95%

Born in Adams County, Illinois

98.76%

Native Born

1.24%

Foreign Born

0.39%

Non Citizen

0.85%

Naturalized

Place of Birth

98.76% of Adams County, Illinois residents were born in the United States, with 76.95% having been born in Illinois. 0.39% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Adams County, Illinois Place of Birth

Sources