US Census Data

Monroe County, Illinois

6 cities & places have their primary county here.

Population
34,969
+2.3%’19–’23
Median household income
$101,635
+18.5%’19–’23
Median home value
$265,600
+25.7%’19–’23

Monroe County is a county in Illinois with a population of 34,969. 6 cities and places have their primary county here. The median household income of $101,635 is above the Illinois median ($81,702).

From 2019 to 2023, Monroe County's population grew 2.3% from 34,168 to 34,969, while its median household income rose 18.5% from $85,747 to $101,635.

81.1% of workers drive to work alone. 82.7% of homes are single-family detached houses.

Demographics

ACS 2019–2023
Population
34,969
Median age
42.5 yrs
Median household income
$101,635
Median home value
$265,600
Median gross rent
$996
Housing units
14,665
Homeownership rate
83.8%
Bachelor's degree or higher
38.2%
Unemployment rate
2.1%

Trends

ACS 5-year · 2019–2023
Population
34,16834,969
Median household income
$85,747$101,635
Median home value
$211,300$265,600
Median gross rent
$872$996
YearPopulationMedian household incomeMedian home valueMedian gross rent
201934,168$85,747$211,300$872
202034,444$89,648$220,600$846
202134,732$92,950$226,300$902
202234,905$100,685$254,100$956
202334,969$101,635$265,600$996

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

CountShare
Under 51,8655.3%
5 to 175,86416.8%
18 to 242,3446.7%
25 to 343,78310.8%
35 to 444,74013.6%
45 to 544,39812.6%
55 to 645,38715.4%
65 to 743,97311.4%
75 and over2,6157.5%

Race & ethnicity

CountShare
White (non-Hispanic)33,31395.3%
Black or African American2080.6%
American Indian & Alaska Native180.1%
Asian1660.5%
Native Hawaiian & Pacific Islander00.0%
Some other race1000.3%
Two or more races5081.5%
Hispanic or Latino (any race)6561.9%

Educational attainment (age 25+)

CountShare
No high school diploma1,0524.2%
High school graduate6,03224.2%
Some college or associate's8,29433.3%
Bachelor's degree6,03324.2%
Graduate or professional degree3,48514.0%

Commute to work

Mean travel time to work
28 min

How workers get to work

CountShare
Drove alone15,15981.1%
Carpooled9295.0%
Public transit10.0%
Walked2231.2%
Bicycle00.0%
Worked from home2,17111.6%
Other means2161.2%

Travel time

CountShare
Under 15 min3,93423.8%
15 to 29 min4,69828.4%
30 to 44 min4,83929.3%
45 to 59 min1,98212.0%
60+ min1,0756.5%

Households

Average household size
2.51
Poverty rate
4.6% (1,583 of 34,559)
CountShare
Family households9,83371.1%
Nonfamily households3,99728.9%

Housing

Median year structure built
1990

Occupancy

CountShare
Occupied13,83094.3%
Vacant8355.7%

Tenure (of occupied units)

CountShare
Owner-occupied11,58983.8%
Renter-occupied2,24116.2%

Units in structure

CountShare
1-unit, detached12,12782.7%
1-unit, attached5553.8%
2 to 4 units6194.2%
5 to 19 units8365.7%
20 or more units2731.9%
Mobile home & other2551.7%

Geography

County GEOID
17133
State
Illinois
Land area
385 sq mi
Water area
13 sq mi
Center point
38.2780, -90.1791

Cities & places

6

Compare with nearby counties

5

Illinois rankings

21

Other counties in Illinois

101