US Census Data

McDonough County, Illinois

11 cities & places have their primary county here.

Population
27,102
-11.1%’19–’23
Median household income
$50,434
+13.4%’19–’23
Median home value
$103,500
+12.7%’19–’23

Home to 27,102 residents, McDonough County is one of Illinois's counties. 11 cities and places have their primary county here. The median household income of $50,434 is below the Illinois median ($81,702).

Between 2019 and 2023, McDonough County's population declined 11.1% from 30,479 to 27,102, while its median household income rose 13.4% from $44,471 to $50,434.

The median resident is 35.1 years old. The largest age group is 18 to 24, 20.4% of residents.

Demographics

ACS 2019–2023
Population
27,102
Median age
35.1 yrs
Median household income
$50,434
Median home value
$103,500
Median gross rent
$730
Housing units
13,598
Homeownership rate
62.1%
Bachelor's degree or higher
31.8%
Unemployment rate
8.6%

Trends

ACS 5-year · 2019–2023
Population
30,47927,102
Median household income
$44,471$50,434
Median home value
$91,800$103,500
Median gross rent
$662$730
YearPopulationMedian household incomeMedian home valueMedian gross rent
201930,479$44,471$91,800$662
202030,107$43,591$91,700$714
202127,743$45,704$89,000$666
202227,370$48,904$100,400$688
202327,102$50,434$103,500$730

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

Age distribution

CountShare
Under 51,2584.6%
5 to 173,59513.3%
18 to 245,52820.4%
25 to 343,13811.6%
35 to 442,79610.3%
45 to 542,4128.9%
55 to 643,14111.6%
65 to 742,96510.9%
75 and over2,2698.4%

Race & ethnicity

CountShare
White (non-Hispanic)23,24585.8%
Black or African American1,5525.7%
American Indian & Alaska Native60.0%
Asian5302.0%
Native Hawaiian & Pacific Islander70.0%
Some other race1030.4%
Two or more races7242.7%
Hispanic or Latino (any race)9353.4%

Educational attainment (age 25+)

CountShare
No high school diploma9585.7%
High school graduate5,47432.7%
Some college or associate's4,97129.7%
Bachelor's degree2,78916.7%
Graduate or professional degree2,52915.1%

Commute to work

Mean travel time to work
19 min

How workers get to work

CountShare
Drove alone9,68376.5%
Carpooled1,1999.5%
Public transit590.5%
Walked6835.4%
Bicycle920.7%
Worked from home8206.5%
Other means1150.9%

Travel time

CountShare
Under 15 min6,44554.5%
15 to 29 min3,10426.2%
30 to 44 min1,0138.6%
45 to 59 min4053.4%
60+ min8647.3%

Households

Average household size
2.08
Poverty rate
19.9% (4,885 of 24,540)
CountShare
Family households5,78149.2%
Nonfamily households5,97950.8%

Housing

Median year structure built
1966

Occupancy

CountShare
Occupied11,76086.5%
Vacant1,83813.5%

Tenure (of occupied units)

CountShare
Owner-occupied7,30462.1%
Renter-occupied4,45637.9%

Units in structure

CountShare
1-unit, detached8,89165.4%
1-unit, attached5774.2%
2 to 4 units1,0257.5%
5 to 19 units1,57411.6%
20 or more units8116.0%
Mobile home & other7205.3%

Geography

County GEOID
17109
State
Illinois
Land area
589 sq mi
Water area
0.8 sq mi
Center point
40.4558, -90.6790

Cities & places

11

Compare with nearby counties

5

Illinois rankings

21

Other counties in Illinois

101