Underwood vs Walnut

A side-by-side comparison of Underwood and Walnut: population, income, housing, and more.

Underwood and Walnut are places in Iowa. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Walnut has the higher population (1,339 vs 977 in Underwood). Underwood has the higher median household income ($90,556 vs $65,278 in Walnut). Underwood has the higher median home value ($227,400 vs $97,900 in Walnut).

Population, income & housing

	Underwood	Walnut
Population	977	1,339
Median age	29.5 yrs	66.6 yrs
Median household income	$90,556	$65,278
Median home value	$227,400	$97,900
Median gross rent	$819	$844
Housing units	363	412
Homeownership rate	80.7%	72.5%
Bachelor's degree or higher	32.6%	15.8%
Unemployment rate	1.7%	3.4%

Trends (ACS 5-year, 2019–2023)

	Underwood	Walnut
Population	854 → 977 (+14.4%)	764 → 1,339 (+75.3%)
Median household income	$81,250 → $90,556 (+11.5%)	$46,625 → $65,278 (+40.0%)
Median home value	$160,800 → $227,400 (+41.4%)	$102,900 → $97,900 (-4.9%)
Median gross rent	$700 → $819 (+17.0%)	$823 → $844 (+2.6%)

Underwood

Population

854977

Median household income

$81,250$90,556

Median home value

$160,800$227,400

Median gross rent

$700$819

Walnut

Population

7641,339

Median household income

$46,625$65,278

Median home value

$102,900$97,900

Median gross rent

$823$844

Age & race/ethnicity

Age distribution (share)

	Underwood	Walnut
Under 5	10.1%	2.7%
5 to 17	22.3%	9.2%
18 to 24	9.4%	1.0%
25 to 34	15.0%	8.0%
35 to 44	12.9%	3.5%
45 to 54	8.7%	7.9%
55 to 64	11.6%	14.8%
65 to 74	5.6%	19.7%
75 and over	4.3%	33.2%

Race & ethnicity (share)

	Underwood	Walnut
White (non-Hispanic)	89.6%	95.1%
Black or African American	0.0%	0.7%
American Indian & Alaska Native	0.5%	0.0%
Asian	1.0%	0.0%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.0%	0.0%
Two or more races	1.6%	0.4%
Hispanic or Latino	7.3%	3.8%

Educational attainment (age 25+)

Share of adults 25+

	Underwood	Walnut
No high school diploma	5.1%	11.4%
High school graduate	16.0%	42.1%
Some college or associate's	46.3%	30.7%
Bachelor's degree	19.2%	11.2%
Graduate or professional degree	13.4%	4.5%

Commute to work

How workers get to work (share)

	Underwood	Walnut
Drove alone	79.5%	85.5%
Carpooled	5.3%	4.3%
Public transit	0.0%	0.0%
Walked	4.9%	0.0%
Bicycle	0.0%	0.0%
Worked from home	9.6%	9.4%
Other means	0.8%	0.8%

Housing

Units in structure (share)

	Underwood	Walnut
1-unit, detached	84.6%	86.2%
1-unit, attached	0.6%	0.0%
2 to 4 units	5.2%	4.6%
5 to 19 units	9.6%	0.0%
20 or more units	0.0%	7.8%
Mobile home & other	0.0%	1.5%

Poverty & households

	Underwood	Walnut
Poverty rate	2.5%	9.7%
Average household size	2.81	2.01
Mean commute (minutes)	25	26
Median year structure built	1980	1938