With 36,227 people, Decatur is a metro area. 16% of adults hold a bachelor's degree, below the 36% national rate. Owners hold 83% of the housing stock. The median age is 33.2, younger than the US median of 38.9. 2% of people across the metro were born outside the United States. Home values have more than doubled since 2000, reaching $178,400.
At a glance
Lower income
median household income $65,289, below the US median
US median: $82,259
Younger
median age 33.2
US median: 38.9
Less educated
16% hold a bachelor's degree
US average: 36%
Stable housing
home values roughly flat, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Decatur
What changed most since 1990
White share97.2% → 92.7%(−4.6 pts)US over the same years: −17.8 pts
Adults with a bachelor's degree10.7% → 16.2%(+5.5 pts)US over the same years: +15.3 pts
Median age30.9 → 33.2(+2.3 years)US over the same years: +6.0 years
Among the 37 metro and micro areas based in Indiana
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)12.7%(135)
US avg: 26.4%
Gulf War (1990s)17.6%(186)
US avg: 24.3%
Vietnam era30%(318)
US avg: 33.1%
Korean War9.8%(104)
US avg: 4.5%
World War II1.6%(17)
US avg: 1%
Share of the 1,059 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Decatur, decade by decade
Decatur population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
31,095
$69,103
$121,923
10.7%
6.8
2000
33,625
$74,005
$158,120
10.7%
10.2
2010
34,387
$62,315
$160,688
12.2%
13.0
2020
35,809
$63,889
$172,231
15.0%
18.1
2024
36,227
$65,289
$178,400
16.2%
17.4
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
