Mercer County, Illinois Population 2020

Mercer County, Illinois's estimated population is 15,623 with a growth rate of 0.15% in the past year according to the most recent United States census data. Mercer County, Illinois is the 71st largest county in Illinois.

Year Population Growth Growth Rate
201815,601-22-0.14%
201715,623240.15%
201615,599-145-0.92%
201515,744-156-0.98%
201415,900-175-1.09%
201316,075-88-0.54%
201216,163-153-0.94%
201116,316-94-0.57%
201016,410-880-5.09%
199017,290-1,996-10.35%
198019,2861,99211.52%
197017,2941450.85%
196017,149-225-1.30%
195017,374-327-1.85%
194017,7011,0606.37%
193016,641-2,159-11.48%
192018,800-923-4.68%
191019,723-1,222-5.83%
190020,9452,40012.94%
189018,545-957-4.91%
188019,5027333.91%
187018,7693,72724.78%
186015,0429,796186.73%
18505,2462,894123.04%
18402,3522,3268946.15%
1830260.00%

How Many People Live in Mercer County, Illinois?

15,623

Population by Race

Race Population Percentage
White15,21596.95%
Two or More Races1991.27%
Some Other Race1060.68%
Black or African American920.59%
Asian650.41%
American Indian and Alaska Native160.10%

Mercer County, Illinois Population Pyramid 2020

Mercer County, Illinois Median Age

44.8


Total

44.1


Male

45.5


Female

Mercer County, Illinois Adults

There are 12,296 adults, (3,271 of whom are seniors) in Mercer County, Illinois.

Mercer County, Illinois Age Dependency

73.9

Age Dependency Ratio

36.2

Old Age Dependency Ratio

37.6

Child Dependency Ratio

Mercer County, Illinois Sex Ratio

Female

7,895

50.31%

Male

7,798

49.69%

Mercer County, Illinois Households and Families

Mercer County, Illinois Renter vs Owner Occupied by Household Type

Mercer County, Illinois Household Types

Type Owner Renter
Married89.7%10.3%
All77.9%22.1%
Male67.3%32.7%
Non Family63%37%
Female59.7%40.3%

77.9%

Rate of Home Ownership

Type Count Average Size Owned
All6,6242.3377.9
Married3,7032.8789.7
Non Family2,1251.1963
Female5332.7759.7
Male2633.1167.3

2.83

Average Family Size

2.33

Average Household Size

6.9%

Unmarried (Opposite Sex)

0.5%

Unmarried (Same Sex)

Mercer County, Illinois Education

Education Attained Count Percentage
Less Than 9th Grade2302.05%
9th to 12th Grade7316.53%
High School Graduate4,39539.25%
Some College2,81625.15%
Associates Degree1,0329.22%
Bachelors Degree1,34412.00%
Graduate Degree6495.80%

Mercer County, Illinois Educational Attainment by Race

Name Total High School Bachelors
White10,8409,9411,930
Hispanic17713410
Black706211
Multiple Races696427
Other Race5749
Asian353514
Native American1371

The highest rate of high school graduation is among asian people with a rate of 100.00%.

The highest rate of bachelors degrees is among asian people with a rate of 40.00%.

Name Average Male Female
Overall$37,695$47,957$27,304
Less Than High School$31,859$35,625$15,500
High School Grad$36,207$46,942$23,032
Some College$35,080$46,406$26,272
Bachelors Degree$44,390$57,917$38,400
Graduate Degree$59,167$64,280$50,234

$37,695

Average Earnings

$47,957

Average Male

$27,304

Average Female

Mercer County, Illinois Language

Mercer County, Illinois Language by Age

Mercer County, Illinois Language

98.72% of Mercer County, Illinois residents speak only English, while 1.28% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 0.74% of the population.

Mercer County, Illinois Poverty

Mercer County, Illinois Poverty by Race

Name Total In Poverty Poverty Rate
White14,7971,65711.20%
Hispanic3635615.43%
Multiple1973316.75%
Other1062018.87%
Black601016.67%
Native16637.50%

11.40%

Overall Poverty Rate

9.48%

Male Poverty Rate

13.30%

Female Poverty Rate

Poverty in Mercer County, Illinois

The race most likely to be in poverty in Mercer County, Illinois is Native, with 37.50% below the poverty level.

The race least likely to be in poverty in Mercer County, Illinois is White, with 11.20% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.57%. Among those working part-time, it was 13.29%, and for those that did not work, the poverty rate was 15.33%.

Name Poverty
Less Than High School13.53%
High School11.29%
Some College6.15%
Bachelors or Greater4.42%
Name Poverty
Female Unemployed61.68%
Male Unemployed15.27%
Female Employed6.72%
Male Employed4.06%

Mercer County, Illinois Income

Mercer County, Illinois Income by Household Type

Name Median Mean
Households$58,011$68,250
Families$71,161$81,299
Married Families$78,236-
Non Families$33,276$38,497

Mercer County, Illinois Marital Status

Mercer County, Illinois Marital Status

Marriage Rates

58.9%

Overall Marriage Rate

59.2%

Male Marriage Rate

58.6%

Female Marriage Rate

Mercer County, Illinois Married by Age and Sex

Mercer County, Illinois 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 35-44.

Mercer County, Illinois Marital Status by Race

Mercer County, Illinois Veterans

1,250

Number of Veterans

1,131

Male Veterans

119

Female Veterans

War Veterans
Vietnam524
First Gulf War185
Second Gulf War155
Korea124
World War II61

Mercer County, Illinois Veterans by Race

Name Veterans % of Total
White1,20610.05%
Hispanic177.52%
Other1722.08%
Black1721.25%
2 or More810.53%
Indian215.38%

Mercer County, Illinois Veterans by Education

7.44%

Veteran Poverty Rate

28.29%

Veteran Disability Rate

Mercer County, Illinois Employment Status

61.7%

Labor Force Participation

58.3%

Employment Rate

5.5%

Unemployment Rate

Mercer County, Illinois Place of Birth

Origin of Non Citizens

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

73.68%

Born in Illinois

98.78%

Native Born

1.22%

Foreign Born

0.24%

Non Citizen

Place of Birth

98.78% of Mercer County, Illinois residents were born in the United States, with 73.68% having been born in Illinois. 0.24% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Population of Cities in Mercer County, Illinois

City 2010 Census 2016 Estimated Growth Growth Rate
Aledo36463516-130-3.57%
Viola955910-45-4.71%
Alexis 831799-32-3.85%
Windsor748790425.61%
Matherville721673-48-6.66%
New Boston683643-40-5.86%
Sherrard640600-40-6.25%
Keithsburg609573-36-5.91%
Reynolds 539512-27-5.01%
Joy417385-32-7.67%
Seaton222211-11-4.95%
North Henderson187178-9-4.81%
  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990