Decatur Flag

Decatur

County:
Decatur County
County Seat:
No
Area (mi²):
0.378
State:
Iowa

Decatur is a city located in Decatur County, Iowa. Decatur has a 2025 population of 179. Decatur is currently growing at a rate of 0.56% annually and its population has increased by 1.7% since the most recent census, which recorded a population of 176 in 2020.

The average household income in Decatur is $48,365 with a poverty rate of 31.29%.The median age in Decatur is 38.8 years: 40.1 years for males, and 35.5 years for females.

179
Total Population
473
Density (mi²)
1 0.56%
Growth

Decatur Population

Decatur Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Decatur includes 87.12% White, 4.29% other race, and smaller percentages for and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White14287.12%
Two or more races148.59%
Other race74.29%

Decatur Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Decatur's average per capita income is $46,000. Household income levels show a median of $33,750. The poverty rate stands at 31.29%.

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$63,750-
Households$33,750$48,365
Families-$51,215
Non Families-$38,322

$46,000

Average Income

$33,750

Median Household Income

31.29%

Poverty Rate

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)
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