Monroe County, Illinois Population 2020

Monroe County, Illinois's estimated population is 34,159 with a growth rate of 0.74% in the past year according to the most recent United States census data. Monroe County, Illinois is the 41st largest county in Illinois.

Year Population Growth Growth Rate
201834,3351760.52%
201734,1592510.74%
201633,9081700.50%
201533,7381960.58%
201433,542830.25%
201333,4591980.60%
201233,261470.14%
201133,2142170.66%
201032,99710,57547.16%
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%

How Many People Live in Monroe County, Illinois?

34,159

Population by Race

Race Population Percentage
White33,17097.74%
Asian3310.98%
Two or More Races2860.84%
Black or African American760.22%
Some Other Race560.17%
American Indian and Alaska Native170.05%

Monroe County, Illinois Population Pyramid 2020

Monroe County, Illinois Median Age

42.6


Total

41.9


Male

43.3


Female

Monroe County, Illinois Adults

There are 26,279 adults, (5,676 of whom are seniors) in Monroe County, Illinois.

Monroe County, Illinois Age Dependency

64.7

Age Dependency Ratio

27.5

Old Age Dependency Ratio

37.2

Child Dependency Ratio

Monroe County, Illinois Sex Ratio

Female

17,245

50.82%

Male

16,691

49.18%

Monroe County, Illinois Households and Families

Monroe County, Illinois Renter vs Owner Occupied by Household Type

Monroe County, Illinois Household Types

Type Owner Renter
Married94.5%5.5%
All84.5%15.5%
Male69.3%30.7%
Female69.2%30.8%
Non Family65.8%34.2%

84.5%

Rate of Home Ownership

Type Count Average Size Owned
All13,3492.5284.5
Married8,4973.0394.5
Non Family3,3121.1365.8
Female9222.6469.2
Male6182.7769.3

2.95

Average Family Size

2.52

Average Household Size

4.3%

Unmarried (Opposite Sex)

0.1%

Unmarried (Same Sex)

Monroe County, Illinois Education

Education Attained Count Percentage
Less Than 9th Grade2731.14%
9th to 12th Grade6802.85%
High School Graduate6,96529.18%
Some College5,79524.28%
Associates Degree2,40410.07%
Bachelors Degree4,86520.38%
Graduate Degree2,88812.10%

Monroe County, Illinois Educational Attainment by Race

Name Total High School Bachelors
White23,16122,2867,516
Hispanic289276114
Asian18113782
Multiple Races148133
Black767024
Other Race2411
Native American171717

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

The highest rate of bachelors degrees is among native american people with a rate of 100.00%.

Name Average Male Female
Overall$50,161$55,903$41,452
Less Than High School$19,198$19,534$
High School Grad$35,405$41,779$30,405
Some College$47,511$55,601$34,447
Bachelors Degree$59,134$74,825$51,623
Graduate Degree$88,100$104,730$68,802

$50,161

Average Earnings

$55,903

Average Male

$41,452

Average Female

Monroe County, Illinois Language

Monroe County, Illinois Language by Age

Monroe County, Illinois Language

97.23% of Monroe County, Illinois residents speak only English, while 2.77% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 1.08% of the population.

Monroe County, Illinois Poverty

Monroe County, Illinois Poverty by Race

Name Total In Poverty Poverty Rate
White32,4851,4914.59%
Asian33111334.14%
Hispanic514387.39%
Multiple2863010.49%
Other561323.21%
Black4912.04%

4.97%

Overall Poverty Rate

3.69%

Male Poverty Rate

6.22%

Female Poverty Rate

Poverty in Monroe County, Illinois

The race most likely to be in poverty in Monroe County, Illinois is Asian, with 34.14% below the poverty level.

The race least likely to be in poverty in Monroe County, Illinois is Black, with 2.04% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.50%. Among those working part-time, it was 6.26%, and for those that did not work, the poverty rate was 9.62%.

Name Poverty
Less Than High School25.37%
High School9.82%
Some College3.24%
Bachelors or Greater0.92%
Name Poverty
Female Unemployed22.02%
Male Unemployed11.30%
Female Employed3.01%
Male Employed2.54%

Monroe County, Illinois Income

Monroe County, Illinois Income by Household Type

Name Median Mean
Households$81,268$101,408
Families$97,965$117,247
Married Families$104,522-
Non Families$33,314$50,295

Monroe County, Illinois Marital Status

Monroe County, Illinois Marital Status

Marriage Rates

62.7%

Overall Marriage Rate

63.5%

Male Marriage Rate

61.9%

Female Marriage Rate

Monroe County, Illinois Married by Age and Sex

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 35-44.

Monroe County, Illinois Marital Status by Race

Monroe County, Illinois Veterans

2,288

Number of Veterans

2,212

Male Veterans

76

Female Veterans

War Veterans
Vietnam880
First Gulf War428
Second Gulf War301
Korea299
World War II91

Monroe County, Illinois Veterans by Race

Name Veterans % of Total
White2,2308.66%
2 or More5831.52%
Hispanic61.71%

Monroe County, Illinois Veterans by Education

4.37%

Veteran Poverty Rate

20.34%

Veteran Disability Rate

Monroe County, Illinois Employment Status

68.1%

Labor Force Participation

65.9%

Employment Rate

3.1%

Unemployment Rate

Monroe 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

54.95%

Born in Illinois

98.35%

Native Born

1.65%

Foreign Born

0.55%

Non Citizen

Place of Birth

98.35% of Monroe County, Illinois residents were born in the United States, with 54.95% having been born in Illinois. 0.55% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Population of Cities in Monroe County, Illinois

City 2010 Census 2016 Estimated Growth Growth Rate
Waterloo9982103093273.28%
Columbia 9685102735886.07%
Dupo 41303887-243-5.88%
Valmeyer1251125650.40%
Hecker 48648930.62%
Maeystown159158-1-0.63%
Fults262600.00%
  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