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Monroe County, Illinois

County

Population: 34,969 (2023 estimate)

Located in Illinois

County-level Census Bureau data covering income, housing, demographics, education, employment, and more. Counties are the primary administrative division in the U.S. and the most common unit for comparing local conditions across a state.

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Data: U.S. Census Bureau, ACS 5-Year Estimates, 2023 (released December 2024).

Quick Facts — Monroe County

What is the median household income in Monroe County?
The median household income in Monroe County is $101,635 (U.S. Census Bureau ACS 5-Year Estimates, 2023).
What is the poverty rate in Monroe County?
The poverty rate in Monroe County is 3.7% (U.S. Census Bureau ACS 2023).
What is the median home value in Monroe County?
$265,600 (U.S. Census Bureau ACS 2023).
What is the average rent in Monroe County?
The median gross rent in Monroe County is $996 per month (U.S. Census Bureau ACS 2023).
What percentage of Monroe County residents have a college degree?
38.2% of adults in Monroe County hold a bachelor's degree or higher (U.S. Census Bureau ACS 2023).
Population
34,969
Median Income
$101,635
Median Home Value
$265,600
Poverty Rate
3.7%
Unemployment (ACS 2023)
2.1%
Median Age
42.0 yrs
Since 2019 Median Income: +$15,888 (+18.5%) Home Value: +$54,300 (+25.7%) Poverty Rate: +0.8 pp (+27.6%) Bachelor's+: +3.2 pp (+9.1%) Unemployment: -0.8 pp (-27.6%)

Demographics

Total Population 34,969
Median Age 42.0
Female 49.6%
Race & Ethnicity
Hispanic or Latino 1.9% White (non-Hisp.) 95.3% Black 0.6% Asian 0.5% Two or More 1.9% Other 0.8%
Asian Subgroups (% of total pop.)
Korean
0.2%
Indian
0.1%
Chinese
0.1%
Filipino
0.1%
Hispanic Subgroups (% of total pop.)
Mexican
1.4%
Puerto Rican
0.2%

Source: U.S. Census Bureau, ACS 5-Year Estimates, 2023

Income & Poverty

Median Household Income $101,635 ±$5,124
+$19,933 vs. state
Per Capita Income $119,652
Median Family Income $128,922
Poverty Rate 3.7%
-4.5 pp vs. state
Child Poverty Rate 4.7%
Working-Age Poverty Rate
SNAP Recipients 5.1%
Social Security Income
Retirement Income 31.2%
Household Income Distribution
< $10k
2.7%
$10–15k
1.6%
$15–25k
5.9%
$25–35k
4.4%
$35–50k
7.0%
$50–75k
13.4%
$75–100k
14.2%
$100–150k
21.6%
$150–200k
13.5%
$200k+
15.8%

Source: U.S. Census Bureau, ACS 5-Year Estimates, 2023

Housing

Total Housing Units 14,665
Owner-Occupied 83.8%
Renter-Occupied 16.2%
Vacancy Rate 5.7%
Median Home Value $265,600
+$15,100 vs. state
Median Gross Rent $996
Owner Cost Burden (30%+) 11.3%
Renter Cost Burden (30%+) 36.0%
Home Value Distribution
< $50k
2.7%
$50–100k
2.4%
$100–200k
8.7%
$200–300k
27.6%
$300–500k
32.4%
$500k–$1M
7.6%
$1M+
1.0%
Gross Rent Distribution
< $500
7.3%
$500–1k
43.0%
$1–1.5k
39.9%
$1.5–2k
7.1%
$2–2.5k
0.9%
$2.5–3.5k
0.3%
$3.5k+
1.3%
Vehicle Availability
No vehicle
4.4%
1 vehicle
23.1%
2 vehicles
41.5%
3+
31.0%
Housing Type
Single-fam. det.
82.7%
Single-fam. att.
3.8%
2–4 units
2.5%
5–19 units
4.6%
20+ units
1.9%
Mobile home
1.7%
Housing Age
Pre-1940
9.3%
1940–1969
4.3%
1970–1999
10.4%
2000–2009
20.7%
2010+
11.0%

Source: U.S. Census Bureau, ACS 5-Year Estimates, 2023

Education

High School or Higher 95.8%
Bachelor's or Higher 38.2%
+1.0 pp vs. state
Graduate Degree 14.0%
Some College / Associate 22.6%
Less Than High School 0.7%
Enrolled in School

Source: U.S. Census Bureau, ACS 5-Year Estimates, 2023

Employment

Labor Force Participation 68.5%
Unemployment Rate 2.1%
-3.7 pp vs. state
Work from Home 11.6%
Self-Employed 4.7%
Government Workers 14.3%
Private For-Profit 81.0%
Industry
Edu/Health
23.2%
Retail
11.5%
Manufacturing
10.3%
Prof. Services
9.1%
Finance
9.0%
Arts/Entmt.
8.5%
Construction
6.3%
Transportation
5.6%
Public Admin
4.4%
Agriculture
3.2%
Wholesale
2.4%
Information
1.6%
Occupation
Management
44.7%
Sales
22.9%
Food Prep
13.6%
Construction
9.4%
Production
9.3%

Source: U.S. Census Bureau, ACS 5-Year Estimates, 2023

Commute

Median Travel Time 28.3 min
Drove Alone 81.1%
Carpool 5.0%
Public Transit 0.0%
Work from Home 11.6%
Walked 1.2%
Bicycle

Source: U.S. Census Bureau, ACS 5-Year Estimates, 2023

Households & Families

Total Households 13,830
Avg. Household Size 2.00
Avg. Family Size
Married-Couple Households 59.8%
Single-Mother Households
Single-Father Households
Living Alone
Households with Children 23.4%
Multigenerational

Source: U.S. Census Bureau, ACS 5-Year Estimates, 2023

Age Distribution

Under 5
5.3%
5–9
5.9%
10–14
6.9%
15–19
5.8%
20–24
4.8%
25–34
10.8%
35–44
13.6%
45–54
12.6%
55–64
8.0%
65–74
7.4%
75–84
11.4%
85+
5.1%
Under 18: 22.1% Working age (18–64): 77.9% 65 and over: 18.8%

Source: U.S. Census Bureau, ACS 5-Year Estimates, 2023

Social Characteristics

Immigration

Foreign Born 1.1%
Naturalized Citizen 86.1%
Speaks English Less Than Very Well 0.3%
Foreign-Born Origin
Asia
41.3%
Latin America
31.6%
Europe
27.1%

Veterans & Disability

Veteran 8.5%
With a Disability 10.7%
Cognitive Difficulty
Ambulatory Difficulty

Health Insurance

Insured 97.8%
Uninsured 2.2%
Employer Insurance
Medicaid
Medicare

Technology & Mobility

Broadband Internet 91.5%
Has a Computer 93.7%
Same House 1 Year Ago 92.5%
Moved from Abroad 0.0%

Source: U.S. Census Bureau, ACS 5-Year Estimates, 2023

Compare Monroe County

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Where People Move From (IRS Migration Data)

Top origins of people who moved to Monroe County in 2023, by number of tax returns filed (IRS SOI Migration Data).

Origin Tax Returns People (est.)
St. Clair County 218 359
St. Louis County 124 205
Other flows - Midwest 72 113
Other flows - South 64 101
Randolph County 60 111
St. Louis city 38 56
Jefferson County 37 64
Madison County 34 59
Other flows - West 30 48