Cass County vs Grundy County

A side-by-side comparison of Cass County and Grundy County: population, income, housing, and more.

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

Cass County has the higher population (13,115 vs 12,352 in Grundy County). Grundy County has the higher median household income ($83,617 vs $61,657 in Cass County). Grundy County has the higher median home value ($180,500 vs $133,300 in Cass County).

Population, income & housing

	Cass County	Grundy County
Population	13,115	12,352
Median age	44.0 yrs	41.5 yrs
Median household income	$61,657	$83,617
Median home value	$133,300	$180,500
Median gross rent	$769	$777
Housing units	6,397	5,489
Homeownership rate	72.3%	84.0%
Bachelor's degree or higher	21.6%	24.7%
Unemployment rate	1.1%	2.2%

Trends (ACS 5-year, 2019–2023)

	Cass County	Grundy County
Population	13,091 → 13,115 (+0.2%)	12,299 → 12,352 (+0.4%)
Median household income	$50,187 → $61,657 (+22.9%)	$68,038 → $83,617 (+22.9%)
Median home value	$102,100 → $133,300 (+30.6%)	$130,200 → $180,500 (+38.6%)
Median gross rent	$646 → $769 (+19.0%)	$633 → $777 (+22.7%)

Cass County

Population

13,09113,115

Median household income

$50,187$61,657

Median home value

$102,100$133,300

Median gross rent

$646$769

Grundy County

Population

12,29912,352

Median household income

$68,038$83,617

Median home value

$130,200$180,500

Median gross rent

$633$777

Age & race/ethnicity

Age distribution (share)

	Cass County	Grundy County
Under 5	5.1%	5.7%
5 to 17	18.5%	17.9%
18 to 24	6.3%	6.8%
25 to 34	10.1%	10.9%
35 to 44	11.3%	12.4%
45 to 54	10.8%	11.6%
55 to 64	14.7%	13.8%
65 to 74	12.9%	11.4%
75 and over	10.3%	9.4%

Race & ethnicity (share)

	Cass County	Grundy County
White (non-Hispanic)	94.2%	95.6%
Black or African American	0.9%	0.7%
American Indian & Alaska Native	0.1%	0.3%
Asian	0.3%	0.5%
Native Hawaiian & Pacific Islander	0.3%	0.0%
Some other race	0.2%	0.6%
Two or more races	1.4%	0.9%
Hispanic or Latino	2.6%	1.5%

Educational attainment (age 25+)

Share of adults 25+

	Cass County	Grundy County
No high school diploma	7.0%	2.8%
High school graduate	37.5%	34.6%
Some college or associate's	34.0%	37.9%
Bachelor's degree	15.9%	18.4%
Graduate or professional degree	5.6%	6.3%

Commute to work

How workers get to work (share)

	Cass County	Grundy County
Drove alone	78.8%	83.2%
Carpooled	6.2%	4.5%
Public transit	0.1%	0.2%
Walked	4.3%	1.8%
Bicycle	0.2%	0.2%
Worked from home	9.1%	9.9%
Other means	1.4%	0.3%

Housing

Units in structure (share)

	Cass County	Grundy County
1-unit, detached	80.2%	84.4%
1-unit, attached	1.1%	1.4%
2 to 4 units	7.1%	5.8%
5 to 19 units	4.2%	3.5%
20 or more units	4.8%	1.6%
Mobile home & other	2.6%	3.4%

Poverty & households

	Cass County	Grundy County
Poverty rate	17.4%	6.4%
Average household size	2.22	2.40
Mean commute (minutes)	16	22
Median year structure built	1954	1960