Diagonal

County:: Ringgold County
County Seat:: No
Area (mi²):: 0.913
State:: Iowa

Diagonal is a city located in Ringgold County, Iowa. Diagonal has a 2025 population of 338. Diagonal is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 338 in 2020.

The average household income in Diagonal is $72,875 with a poverty rate of 6.35%. The median age in Diagonal is 47.2 years: 40.1 years for males, and 52.3 years for females.

Demographics

The racial composition of Diagonal includes 84.82% White, and smaller percentages for Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Other race

Race	Population	Percentage (of total)
White	408	84.82%
Two or more races	73	15.18%
Black or African American	0	0%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

Diagonal Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Diagonal's average per capita income is $36,563. Household income levels show a median of $80,417. The poverty rate stands at 6.35%.

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	$88,143	-
Families	$87,607	$82,006
Households	$80,417	$72,875
Non Families	$29,375	$37,039

$36,563

Average Income

$80,417

Median Household Income

6.35%

Poverty Rate