Mount Lebanon is located in Allegheny County, Pennsylvania. Mount Lebanon has a 2025 population of 32,761 . Mount Lebanon is currently declining at a rate of -0.47% annually and its population has decreased by -3.71% since the most recent census, which recorded a population of 34,022 in 2020.
The average household income in Mount Lebanon is $166,904 with a poverty rate of 3.5%. The median age in Mount Lebanon is 43.6 years: 42 years for males, and 45.9 years for females. For every 100 females there are 94.2 males.
Data after 2023 is projected based on recent change
The racial composition of Mount Lebanon includes 88.17% White, 3.9% Asian, and smaller percentages for other race, Black or African American, Native American and multiracial populations.
White (88.17%)
Two or more races (5.45%)
Asian (3.9%)
Other race (1.31%)
Black or African American (1.12%)
Native American (0.05%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 29,584 | 88.17% |
| Two or more races | 1,830 | 5.45% |
| Asian | 1,308 | 3.9% |
| Other race | 439 | 1.31% |
| Black or African American | 377 | 1.12% |
| Native American | 17 | 0.05% |
Married
Widowed
Divorced
Separated
Never Married
Mount Lebanon's average per capita income is $75,422. Household income levels show a median of $120,980. The poverty rate stands at 3.5%.
Name | Median | Mean |
|---|---|---|
| Married Families | $169,482 | - |
| Families | $159,618 | $207,467 |
| Households | $120,980 | $166,904 |
| Non Families | $53,048 | $80,803 |
Average Income
Median Household Income
Poverty Rate