Monroe County, Illinois Population 2021

Monroe County, Illinois's estimated population is 35,165 with a growth rate of 0.76% in the past year according to the most recent United States census data. Monroe County, Illinois is the 41st largest county in Illinois. The 2010 Population was 32,994 and has seen a growth of 6.58% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Growth Rate
202135,1652640.76%
202034,9012640.76%
201934,6372640.77%
201834,3731940.57%
201734,1792660.78%
201633,9131740.52%
201533,7391990.59%
201433,540830.25%
201333,4571970.59%
201233,260460.14%
201133,2142200.67%
201032,99410,57247.15%
199022,4222,30511.46%
198020,1171,2866.83%
197018,8313,32421.44%
196015,5072,22516.75%
195013,2825284.14%
194012,7543853.11%
193012,369-470-3.66%
192012,839-669-4.95%
191013,508-339-2.45%
190013,8478996.94%
189012,948-734-5.36%
188013,6827005.39%
187012,9821501.17%
186012,8325,15367.11%
18507,6793,19871.37%
18404,4812,481124.05%
18302,00046330.12%
18201,5370.00%
2021 Growth Rate
0.76%
County Website
Founded
1816
County Seat
2010 Population
32,994
Growth Since 2010
6.58%
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Monroe County, Illinois Population Growth

Population by Race

Race Population Percentage
White33,25197.32%
Asian4441.30%
Two or More Races2450.72%
Some Other Race1680.49%
Black or African American600.18%
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Monroe County, Illinois Population by Race

Monroe County, Illinois Population Pyramid $2021

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Monroe County, Illinois Median Age

42


Total

41.9


Male

42.2


Female

Monroe County, Illinois Adults

There are 26,526 adults, (5,891 of whom are seniors) in Monroe County, Illinois.

Monroe County, Illinois Age Dependency

65.6

Age Dependency Ratio

28.5

Old Age Dependency Ratio

37

Child Dependency Ratio

Monroe County, Illinois Sex Ratio

Female

17,380

50.87%

Male

16,788

49.13%

Monroe County, Illinois Population by Age

Monroe County, Illinois Renter vs Owner Occupied by Household Type

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Monroe County, Illinois Household Types

Type Owner Renter
Married94.2%5.8%
All83.4%16.6%
Male66.9%33.1%
Non Family66.3%33.7%
Female64.1%35.9%

83.4%

Rate of Home Ownership

Monroe County, Illinois Households and Families

Type Count Average Size Owned
All13,5862.583.4
Married8,4083.0394.2
Non Family3,4811.1466.3
Female1,0832.664.1
Male6142.7266.9

2.93

Average Family Size

2.5

Average Household Size

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Monroe County, Illinois Households by Type

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Education Attained Count Percentage
Less Than 9th Grade2691.11%
9th to 12th Grade7052.92%
High School Graduate6,67427.64%
Some College5,50222.79%
Associates Degree2,53410.50%
Bachelors Degree5,48122.70%
Graduate Degree2,97912.34%
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Monroe County, Illinois Educational Attainment by Sex (over 25)

Monroe County, Illinois Educational Attainment by Race

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Race Total High School Bachelors
White23,39122,5498,185
Hispanic31526457
Asian297239184
2+ Races10910012
Other Race903926
Black604622

The highest rate of high school graduation is among white people with a rate of 96.40%.

The highest rate of bachelors degrees is among asian people with a rate of 61.95%.

Monroe County, Illinois Educational Attainment by Race

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Name Average Male Female
Overall$50,938$59,546$41,426
Less Than 9th Grade$18,404$$
High School Graduate$32,680$46,020$30,453
Some College$47,602$58,024$36,714
Bachelors Degree$58,809$74,231$51,343
Graduate Degree$79,041$118,194$64,864

$50,938

Average Earnings

$59,546

Average Male

$41,426

Average Female

Monroe County, Illinois Earnings by Educational Attainment

Monroe County, Illinois Language by Age

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Monroe County, Illinois Language

96.88% of Monroe County, Illinois residents speak only English, while 3.12% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 1.17% of the population.

Monroe County, Illinois Language

Monroe County, Illinois Poverty by Race

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Name Total In Poverty Poverty Rate
White32,6341,2253.75%
Asian44413029.28%
Hispanic522438.24%
Other1681710.12%
Black4224.76%

4.13%

Overall Poverty Rate

3.54%

Male Poverty Rate

4.71%

Female Poverty Rate

Poverty in Monroe County, Illinois

The race most likely to be in poverty in Monroe County, Illinois is Asian, with 29.28% below the poverty level.

The race least likely to be in poverty in Monroe County, Illinois is White, with 3.75% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.99%. Among those working part-time, it was 6.01%, and for those that did not work, the poverty rate was 8.45%.

Monroe County, Illinois Poverty

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Name Poverty
Less Than 9th Grade25.17%
High School7.99%
Some College2.86%
Bachelors or Greater0.83%

Monroe County, Illinois Poverty Rate by Education

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Rate Poverty
Female Unemployed21.59%
Male Unemployed7.76%
Male Employed2.40%
Female Employed2.31%

Monroe County, Illinois Poverty Rate by Employment Status and Sex

Monroe County, Illinois Income by Household Type

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Name Median Mean
Households$85,747$105,341
Families$101,294$121,182
Married Families$110,000-
Non Families$37,976$56,615
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Income by Household Type

Monroe County, Illinois Marital Status

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Marriage Rates

61.7%

Overall Marriage Rate

62.9%

Male Marriage Rate

60.5%

Female Marriage Rate

Monroe County, Illinois Married by Age and Sex

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Monroe 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 55-64.

Monroe County, Illinois Marital Status by Race

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Monroe County, Illinois Marital Status

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2,237

Number of Veterans

2,149

Male Veterans

88

Female Veterans

War Veterans
Vietnam780
First Gulf War426
Second Gulf War332
Korea306
World War II96

Monroe County, Illinois Veterans by War

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Age Group Veterans
75+664
65 to 74652
35 to 54373
55 to 64357
18 to 34191

Monroe County, Illinois Veterans by Age

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Name Veterans % of Total
White2,2238.59%
2+ Races149.93%
Hispanic82.18%

Monroe County, Illinois Veterans by Race

Monroe County, Illinois Veterans by Education

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3.88%

Veteran Poverty Rate

23.30%

Veteran Disability Rate

Monroe County, Illinois Veterans by Education

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68.1%

Labor Force Participation

66%

Employment Rate

2.9%

Unemployment Rate

Monroe County, Illinois Employment by Age

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Monroe County, Illinois Employment by Race

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Monroe County, Illinois Employment by Education

Origin of Non-Citizens

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

Origin of Naturalized Citizens

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55.18%

Born in Monroe County, Illinois

98.06%

Native Born

1.94%

Foreign Born

0.59%

Non Citizen

1.36%

Naturalized

Place of Birth

98.06% of Monroe County, Illinois residents were born in the United States, with 55.18% having been born in Illinois. 0.59% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Monroe County, Illinois Place of Birth

  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

Sources