Cromwell

County:: Union County
County Seat:: No
Area (mi²):: 0.299
State:: Iowa

Cromwell is a city located in Union County, Iowa. Cromwell has a 2025 population of 101. Cromwell is currently declining at a rate of -0.98% annually and its population has decreased by -3.81% since the most recent census, which recorded a population of 105 in 2020.

The average household income in Cromwell is $72,079 with a poverty rate of 9.2%. The median age in Cromwell is 52.6 years: 56.3 years for males, and 52.5 years for females.

Demographics

The racial composition of Cromwell includes 96.55% White, and smaller percentages for other race, Two or more races, Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Other race

Two or more races

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	84	96.55%
Other race	2	2.3%
Two or more races	1	1.15%
Black or African American	0	0%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%

Cromwell Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Cromwell's average per capita income is $46,875. Household income levels show a median of $57,500. The poverty rate stands at 9.2%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$74,375	-
Families	$73,750	$83,446
Households	$57,500	$72,079
Non Families	$43,750	$40,125

$46,875

Average Income

$57,500

Median Household Income

9.2%

Poverty Rate