Diagonal Flag

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 329. Diagonal is currently declining at a rate of -0.6% annually and its population has decreased by -2.08% since the most recent census, which recorded a population of 336 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.

329
Total Population
360
Density (mi²)
-2 -0.6%
Growth

Diagonal Population

Diagonal Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Diagonal includes 84.82% White, and smaller percentages for and multiracial populations.

Population by Race

White (84.8%)

Two or more races (15.2%)

Race
Population
Percentage (of total)
White40884.82%
Two or more races7315.18%

Diagonal Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

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

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)