Spencer County's estimated 2026 population is 19,965 with a growth rate of -0.48% in the past year according to the most recent United States census data. Spencer County is the 73rd largest county in Indiana. The 2010 population was 20,916 and has seen a growth of -4.55% since that time.
Data after 2023 is projected based on recent change
Overall: 44.4 years
Female: 44.9 years
Male: 43.8 years
There are 15,642 adults, (4,116 of whom are seniors) in Spencer County.
Female: 9,687 (48.5%)
Male: 10,268 (51.5%)
The racial composition of Spencer County includes 93.65% White, and smaller percentages for other race, Black or African American, Asian, Native American and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 18,688 | 93.65% |
| Two or more races | 818 | 4.1% |
| Other race | 256 | 1.28% |
| Black or African American | 113 | 0.57% |
| Asian | 49 | 0.25% |
| Native American | 31 | 0.16% |
Spencer County's average per capita income is $49,486. Household income levels show a median of $74,506. The poverty rate stands at 7.47%.
Name | Median | Mean |
|---|---|---|
| Married Families | $102,946 | - |
| Families | $94,291 | $104,406 |
| Households | $74,506 | $88,201 |
| Non Families | $38,333 | $50,756 |
Average Income
Median Household Income
Poverty Rate
