Spencer County is home to 19,955 people in Indiana. Few US counties rank higher on income. Owners hold 81% of the housing stock. Four-year degrees are less common here than nationally, at 22% of adults. The median age is 44.4, about 5 years above the US median. 2% of people here were born outside the United States.
At a glance
Lower income
median household income $74,506, below the US median
US median: $82,259
Older
median age 44.4
US median: 38.9
Less educated
22% 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 Spencer County
What changed most since 1990
White share98.1% → 93.2%(−4.9 pts)US over the same years: −17.8 pts
Median age33.7 → 44.4(+10.7 years)US over the same years: +6.0 years
Hispanic share0.6% → 3.6%(+3.0 pts)US over the same years: +9.9 pts
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)14.1%(150)
US avg: 26.4%
Gulf War (1990s)24.3%(259)
US avg: 24.3%
Vietnam era38.1%(406)
US avg: 33.1%
Korean War5.8%(62)
US avg: 4.5%
World War II1.3%(14)
US avg: 1%
Share of the 1,067 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
Spencer County, decade by decade
Spencer County 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
19,490
$69,067
$112,563
9.2%
4.7
2000
20,391
$77,331
$155,569
13.0%
7.2
2010
20,952
$74,957
$160,545
15.9%
9.9
2020
19,810
$68,988
$161,444
17.3%
17.4
2024
19,955
$74,506
$185,200
22.0%
16.3
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.
