US Census Data

Iroquois County vs McDonough County

A side-by-side comparison of Iroquois County and McDonough County: population, income, housing, and more.

Iroquois County and McDonough County are counties in Illinois. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

McDonough County has the higher population (27,102 vs 26,746 in Iroquois County). Iroquois County has the higher median household income ($62,439 vs $50,434 in McDonough County). Iroquois County has the higher median home value ($125,400 vs $103,500 in McDonough County).

Population, income & housing

Iroquois CountyMcDonough County
Population26,74627,102
Median age44.4 yrs35.1 yrs
Median household income$62,439$50,434
Median home value$125,400$103,500
Median gross rent$793$730
Housing units12,81813,598
Homeownership rate78.5%62.1%
Bachelor's degree or higher16.7%31.8%
Unemployment rate4.8%8.6%

Trends (ACS 5-year, 2019–2023)

Iroquois CountyMcDonough County
Population27,812 → 26,746 (-3.8%)30,479 → 27,102 (-11.1%)
Median household income$52,700 → $62,439 (+18.5%)$44,471 → $50,434 (+13.4%)
Median home value$102,800 → $125,400 (+22.0%)$91,800 → $103,500 (+12.7%)
Median gross rent$686 → $793 (+15.6%)$662 → $730 (+10.3%)

Iroquois County

Population
27,81226,746
Median household income
$52,700$62,439
Median home value
$102,800$125,400
Median gross rent
$686$793

McDonough County

Population
30,47927,102
Median household income
$44,471$50,434
Median home value
$91,800$103,500
Median gross rent
$662$730

Age & race/ethnicity

Age distribution (share)

Iroquois CountyMcDonough County
Under 55.7%4.6%
5 to 1716.0%13.3%
18 to 247.6%20.4%
25 to 349.9%11.6%
35 to 4411.6%10.3%
45 to 5411.7%8.9%
55 to 6415.2%11.6%
65 to 7412.5%10.9%
75 and over9.7%8.4%

Race & ethnicity (share)

Iroquois CountyMcDonough County
White (non-Hispanic)87.8%85.8%
Black or African American0.7%5.7%
American Indian & Alaska Native0.1%0.0%
Asian0.4%2.0%
Native Hawaiian & Pacific Islander0.0%0.0%
Some other race0.2%0.4%
Two or more races2.9%2.7%
Hispanic or Latino8.0%3.4%

Educational attainment (age 25+)

Share of adults 25+

Iroquois CountyMcDonough County
No high school diploma10.9%5.7%
High school graduate39.8%32.7%
Some college or associate's32.6%29.7%
Bachelor's degree11.9%16.7%
Graduate or professional degree4.9%15.1%

Commute to work

How workers get to work (share)

Iroquois CountyMcDonough County
Drove alone81.1%76.5%
Carpooled7.7%9.5%
Public transit0.3%0.5%
Walked2.1%5.4%
Bicycle0.1%0.7%
Worked from home7.2%6.5%
Other means1.5%0.9%

Housing

Units in structure (share)

Iroquois CountyMcDonough County
1-unit, detached84.8%65.4%
1-unit, attached2.3%4.2%
2 to 4 units5.4%7.5%
5 to 19 units2.7%11.6%
20 or more units0.7%6.0%
Mobile home & other4.1%5.3%

Poverty & households

Iroquois CountyMcDonough County
Poverty rate13.4%19.9%
Average household size2.322.08
Mean commute (minutes)2419
Median year structure built19601966

Full profiles

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