Mercer County's estimated 2026 population is 107,482 with a growth rate of -0.35% in the past year according to the most recent United States census data. Mercer County is the 31st largest county in Pennsylvania. The 2010 population was 116,607 and has seen a growth of -7.83% since that time.
Data after 2023 is projected based on recent change
Overall: 45.1 years
Female: 47.3 years
Male: 43 years
There are 88,565 adults, (25,271 of whom are seniors) in Mercer County.
Female: 55,086 (50.4%)
Male: 54,171 (49.6%)
The racial composition of Mercer County includes 88.08% White, 5.82% Black or African American, and smaller percentages for other race, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 96,236 | 88.08% |
| Black or African American | 6,358 | 5.82% |
| Two or more races | 4,923 | 4.51% |
| Other race | 910 | 0.83% |
| Asian | 709 | 0.65% |
| Native American | 102 | 0.09% |
| Native Hawaiian or Pacific Islander | 19 | 0.02% |
Mercer County's average per capita income is $45,755. Household income levels show a median of $59,976. The poverty rate stands at 13.16%.
Name | Median | Mean |
|---|---|---|
| Married Families | $92,197 | $110,416 |
| Families | $78,354 | $96,992 |
| Households | $59,976 | $79,381 |
| Non Families | $34,582 | $46,528 |
Average Income
Median Household Income
Poverty Rate