Mercer County's estimated 2026 population is 23,967 with a growth rate of 0.99% in the past year according to the most recent United States census data. Mercer County is the 50th largest county in Kentucky. The 2010 population was 21,318 and has seen a growth of 12.43% since that time.
Data after 2023 is projected based on recent change
Overall: 42.9 years
Female: 44.3 years
Male: 41.6 years
There are 18,011 adults, (4,363 of whom are seniors) in Mercer County.
Female: 11,320 (49.2%)
Male: 11,708 (50.8%)
The racial composition of Mercer County includes 90.25% White, 3.23% Black or African American, and smaller percentages for other race, Native American, Asian and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 20,783 | 90.25% |
| Two or more races | 949 | 4.12% |
| Black or African American | 743 | 3.23% |
| Other race | 467 | 2.03% |
| Native American | 43 | 0.19% |
| Asian | 43 | 0.19% |
Mercer County's average per capita income is $44,152. Household income levels show a median of $64,824. The poverty rate stands at 10.66%.
Name | Median | Mean |
|---|---|---|
| Married Families | $95,530 | - |
| Families | $86,089 | $101,183 |
| Households | $64,824 | $82,091 |
| Non Families | $40,970 | $47,186 |
Average Income
Median Household Income
Poverty Rate