Kirkman vs Portsmouth

A side-by-side comparison of Kirkman and Portsmouth: population, income, housing, and more.

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

Portsmouth has the higher population (200 vs 44 in Kirkman). Portsmouth has the higher median household income ($79,643 vs $73,750 in Kirkman). Portsmouth has the higher median home value ($115,500 vs $108,300 in Kirkman).

Population, income & housing

	Kirkman	Portsmouth
Population	44	200
Median age	55.0 yrs	43.5 yrs
Median household income	$73,750	$79,643
Median home value	$108,300	$115,500
Median gross rent	$1,125	$575
Housing units	30	105
Homeownership rate	80.0%	93.9%
Bachelor's degree or higher	8.8%	10.7%
Unemployment rate	17.4%	0.0%

Trends (ACS 5-year, 2019–2023)

	Kirkman	Portsmouth
Population	68 → 44 (-35.3%)	126 → 200 (+58.7%)
Median household income	$64,375 → $73,750 (+14.6%)	$56,250 → $79,643 (+41.6%)
Median home value	$56,900 → $108,300 (+90.3%)	$107,800 → $115,500 (+7.1%)
Median gross rent	$933 → $1,125 (+20.6%)	$583 → $575 (-1.4%)

Kirkman

Population

6844

Median household income

$64,375$73,750

Median home value

$56,900$108,300

Median gross rent

$933$1,125

Portsmouth

Population

126200

Median household income

$56,250$79,643

Median home value

$107,800$115,500

Median gross rent

$583$575

Age & race/ethnicity

Age distribution (share)

	Kirkman	Portsmouth
Under 5	4.5%	7.0%
5 to 17	11.4%	17.0%
18 to 24	6.8%	1.5%
25 to 34	11.4%	15.5%
35 to 44	4.5%	10.5%
45 to 54	11.4%	19.5%
55 to 64	18.2%	15.0%
65 to 74	25.0%	10.0%
75 and over	6.8%	4.0%

Race & ethnicity (share)

	Kirkman	Portsmouth
White (non-Hispanic)	95.5%	87.0%
Black or African American	0.0%	0.0%
American Indian & Alaska Native	0.0%	0.0%
Asian	0.0%	0.0%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.0%	0.0%
Two or more races	0.0%	10.0%
Hispanic or Latino	4.5%	3.0%

Educational attainment (age 25+)

Share of adults 25+

	Kirkman	Portsmouth
No high school diploma	20.6%	5.4%
High school graduate	38.2%	32.2%
Some college or associate's	32.4%	51.7%
Bachelor's degree	8.8%	8.1%
Graduate or professional degree	0.0%	2.7%

Commute to work

How workers get to work (share)

	Kirkman	Portsmouth
Drove alone	88.2%	74.8%
Carpooled	11.8%	2.4%
Public transit	0.0%	0.0%
Walked	0.0%	12.6%
Bicycle	0.0%	0.0%
Worked from home	0.0%	7.1%
Other means	0.0%	3.1%

Housing

Units in structure (share)

	Kirkman	Portsmouth
1-unit, detached	86.7%	98.1%
1-unit, attached	0.0%	0.0%
2 to 4 units	13.3%	1.0%
5 to 19 units	0.0%	0.0%
20 or more units	0.0%	0.0%
Mobile home & other	0.0%	1.0%

Poverty & households

	Kirkman	Portsmouth
Poverty rate	11.4%	3.0%
Average household size	2.20	2.04
Mean commute (minutes)	21	23
Median year structure built	1938	1957