Boone County vs Plymouth County

A side-by-side comparison of Boone County and Plymouth County: population, income, housing, and more.

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

Boone County has the higher population (26,669 vs 25,699 in Plymouth County). Plymouth County has the higher median household income ($81,600 vs $79,741 in Boone County). Plymouth County has the higher median home value ($218,600 vs $191,200 in Boone County).

Population, income & housing

	Boone County	Plymouth County
Population	26,669	25,699
Median age	42.2 yrs	41.1 yrs
Median household income	$79,741	$81,600
Median home value	$191,200	$218,600
Median gross rent	$826	$865
Housing units	12,005	10,863
Homeownership rate	81.1%	73.7%
Bachelor's degree or higher	28.7%	23.9%
Unemployment rate	1.3%	1.9%

Trends (ACS 5-year, 2019–2023)

	Boone County	Plymouth County
Population	26,370 → 26,669 (+1.1%)	25,068 → 25,699 (+2.5%)
Median household income	$64,000 → $79,741 (+24.6%)	$67,297 → $81,600 (+21.3%)
Median home value	$132,700 → $191,200 (+44.1%)	$163,500 → $218,600 (+33.7%)
Median gross rent	$742 → $826 (+11.3%)	$660 → $865 (+31.1%)

Boone County

Population

26,37026,669

Median household income

$64,000$79,741

Median home value

$132,700$191,200

Median gross rent

$742$826

Plymouth County

Population

25,06825,699

Median household income

$67,297$81,600

Median home value

$163,500$218,600

Median gross rent

$660$865

Age & race/ethnicity

Age distribution (share)

	Boone County	Plymouth County
Under 5	5.1%	5.7%
5 to 17	15.9%	19.3%
18 to 24	7.4%	7.1%
25 to 34	12.5%	10.8%
35 to 44	13.0%	12.2%
45 to 54	11.9%	11.9%
55 to 64	14.6%	13.7%
65 to 74	12.1%	11.1%
75 and over	7.5%	8.2%

Race & ethnicity (share)

	Boone County	Plymouth County
White (non-Hispanic)	93.3%	88.8%
Black or African American	1.3%	2.4%
American Indian & Alaska Native	0.0%	0.2%
Asian	0.2%	0.5%
Native Hawaiian & Pacific Islander	0.0%	0.1%
Some other race	0.0%	0.0%
Two or more races	2.4%	1.9%
Hispanic or Latino	2.8%	6.1%

Educational attainment (age 25+)

Share of adults 25+

	Boone County	Plymouth County
No high school diploma	4.3%	5.8%
High school graduate	31.5%	36.3%
Some college or associate's	35.5%	34.0%
Bachelor's degree	19.7%	18.4%
Graduate or professional degree	9.1%	5.5%

Commute to work

How workers get to work (share)

	Boone County	Plymouth County
Drove alone	80.4%	79.3%
Carpooled	6.8%	8.7%
Public transit	0.5%	0.4%
Walked	2.1%	2.2%
Bicycle	0.2%	0.1%
Worked from home	9.1%	8.6%
Other means	0.9%	0.7%

Housing

Units in structure (share)

	Boone County	Plymouth County
1-unit, detached	81.3%	77.0%
1-unit, attached	1.6%	3.2%
2 to 4 units	4.1%	5.9%
5 to 19 units	4.9%	7.8%
20 or more units	6.4%	1.8%
Mobile home & other	1.7%	4.3%

Poverty & households

	Boone County	Plymouth County
Poverty rate	6.7%	6.8%
Average household size	2.39	2.46
Mean commute (minutes)	22	19
Median year structure built	1957	1972