Iowa County vs Madison County

A side-by-side comparison of Iowa County and Madison County: population, income, housing, and more.

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

Madison County has the higher population (16,760 vs 16,547 in Iowa County). Madison County has the higher median household income ($89,542 vs $72,185 in Iowa County). Madison County has the higher median home value ($236,900 vs $189,800 in Iowa County).

Population, income & housing

	Iowa County	Madison County
Population	16,547	16,760
Median age	42.2 yrs	41.0 yrs
Median household income	$72,185	$89,542
Median home value	$189,800	$236,900
Median gross rent	$722	$938
Housing units	7,355	7,031
Homeownership rate	76.1%	81.3%
Bachelor's degree or higher	24.2%	25.5%
Unemployment rate	2.4%	2.7%

Trends (ACS 5-year, 2019–2023)

	Iowa County	Madison County
Population	16,189 → 16,547 (+2.2%)	16,012 → 16,760 (+4.7%)
Median household income	$61,443 → $72,185 (+17.5%)	$66,316 → $89,542 (+35.0%)
Median home value	$152,500 → $189,800 (+24.5%)	$177,500 → $236,900 (+33.5%)
Median gross rent	$580 → $722 (+24.5%)	$789 → $938 (+18.9%)

Iowa County

Population

16,18916,547

Median household income

$61,443$72,185

Median home value

$152,500$189,800

Median gross rent

$580$722

Madison County

Population

16,01216,760

Median household income

$66,316$89,542

Median home value

$177,500$236,900

Median gross rent

$789$938

Age & race/ethnicity

Age distribution (share)

	Iowa County	Madison County
Under 5	5.4%	5.3%
5 to 17	18.1%	19.6%
18 to 24	6.4%	7.0%
25 to 34	11.1%	9.6%
35 to 44	12.4%	13.3%
45 to 54	11.5%	13.4%
55 to 64	15.6%	13.7%
65 to 74	11.1%	11.4%
75 and over	8.4%	6.7%

Race & ethnicity (share)

	Iowa County	Madison County
White (non-Hispanic)	93.4%	94.3%
Black or African American	0.4%	0.8%
American Indian & Alaska Native	0.1%	0.0%
Asian	0.2%	0.3%
Native Hawaiian & Pacific Islander	0.0%	0.1%
Some other race	0.1%	0.1%
Two or more races	2.5%	2.2%
Hispanic or Latino	3.3%	2.2%

Educational attainment (age 25+)

Share of adults 25+

	Iowa County	Madison County
No high school diploma	5.3%	4.7%
High school graduate	34.7%	33.7%
Some college or associate's	35.8%	36.1%
Bachelor's degree	17.5%	19.3%
Graduate or professional degree	6.8%	6.2%

Commute to work

How workers get to work (share)

	Iowa County	Madison County
Drove alone	79.7%	75.7%
Carpooled	7.5%	5.6%
Public transit	0.1%	0.1%
Walked	3.1%	3.3%
Bicycle	0.0%	0.0%
Worked from home	8.2%	14.8%
Other means	1.4%	0.5%

Housing

Units in structure (share)

	Iowa County	Madison County
1-unit, detached	78.1%	84.6%
1-unit, attached	3.1%	3.0%
2 to 4 units	8.7%	4.5%
5 to 19 units	4.1%	2.0%
20 or more units	2.0%	1.8%
Mobile home & other	3.9%	4.0%

Poverty & households

	Iowa County	Madison County
Poverty rate	9.2%	6.8%
Average household size	2.37	2.50
Mean commute (minutes)	22	27
Median year structure built	1971	1977