Spencer County's estimated 2026 population is 20,540 with a growth rate of 0.85% in the past year according to the most recent United States census data. Spencer County is the 71st largest county in Indiana. The 2010 population was 20,916 and has seen a growth of -1.8% since that time.
Data after 2023 is projected based on recent change
The racial composition of Spencer County includes 94.82% White, and smaller percentages for other race, Black or African American, Asian, Native American and multiracial populations.
White (94.82%)
Two or more races (3.2%)
Other race (0.99%)
Black or African American (0.55%)
Asian (0.34%)
Native American (0.1%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 18,842 | 94.82% |
| Two or more races | 636 | 3.2% |
| Other race | 197 | 0.99% |
| Black or African American | 110 | 0.55% |
| Asian | 67 | 0.34% |
| Native American | 19 | 0.1% |
Married
Widowed
Divorced
Separated
Never Married
Spencer County's average per capita income is $48,201. Household income levels show a median of $70,890. The poverty rate stands at 6.64%.
Name | Median | Mean |
|---|---|---|
| Married Families | $100,661 | - |
| Families | $95,217 | $106,058 |
| Households | $70,890 | $87,894 |
| Non Families | $35,920 | $47,789 |
Average Income
Median Household Income
Poverty Rate
