Decatur Flag

Decatur

County:
Adams County
County Seat:
Yes
Area (mi²):
32.267
State:
Indiana

Decatur is located in Adams County, Indiana. Decatur has a 2025 population of 37,496 . It is also the county seat of Adams County . Decatur is currently growing at a rate of 0.71% annually and its population has increased by 1.52% since the most recent census, which recorded a population of 36,934 in 2020.

The average household income in Decatur is $76,215 with a poverty rate of 16.54%. The median age in Decatur is 32.6 years: 32 years for males, and 33.4 years for females. For every 100 females there are 104.7 males.

37.5K
Total Population
1,162
Density (mi²)
266 0.71%
Growth

Decatur Population

Decatur Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Decatur includes 68.39% White, 17.48% Black or African American, 4.73% other race, and smaller percentages for Asian, Native American and multiracial populations.

Population by Race

White (68.39%)

Black or African American (17.48%)

Two or more races (7.98%)

Other race (4.73%)

Asian (0.72%)

Native American (0.7%)

Race
Population
Percentage (of total)
White25,12968.39%
Black or African American6,42217.48%
Two or more races2,9327.98%
Other race1,7374.73%
Asian2640.72%
Native American2580.7%

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 $43,415. Household income levels show a median of $67,164. The poverty rate stands at 16.54%.

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$84,413-
Families$75,058$83,792
Households$67,164$76,215
Non Families$43,555$55,560

$43,415

Average Income

$67,164

Median Household Income

16.54%

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)