Decatur

County:: Adams County
County Seat:: Yes
Area (mi²):: 6.102
State:: Indiana

Decatur is a city located in Adams County, Indiana. Decatur has a 2025 population of 10,084. It is also the county seat of Adams County. Decatur is currently growing at a rate of 0.32% annually and its population has increased by 1.62% since the most recent census, which recorded a population of 9,923 in 2020.

The average household income in Decatur is $65,511 with a poverty rate of 10.8%. The median age in Decatur is 43.6 years: 41.4 years for males, and 45.9 years for females.

Demographics

The racial composition of Decatur includes 90.03% White, 3.07% other race, and smaller percentages for Black or African American, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Other race

Black or African American

Asian

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	8,795	90.03%
Two or more races	562	5.75%
Other race	300	3.07%
Black or African American	111	1.14%
Asian	1	0.01%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

Decatur Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Decatur's average per capita income is $42,337. Household income levels show a median of $58,867. The poverty rate stands at 10.8%.

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	$91,434	-
Families	$73,516	$77,923
Households	$58,867	$65,511
Non Families	$39,696	$48,007

$42,337

Average Income

$58,867

Median Household Income

10.8%

Poverty Rate