Castle Shannon is a borough located in Allegheny County, Pennsylvania. Castle Shannon has a 2025 population of 8,046 . Castle Shannon is currently declining at a rate of -0.59% annually and its population has decreased by -2.9% since the most recent census, which recorded a population of 8,286 in 2020.
The average household income in Castle Shannon is $81,574 with a poverty rate of 8.45%. The median age in Castle Shannon is 41.9 years: 40.3 years for males, and 42.2 years for females. For every 100 females there are 91.1 males.
Data after 2023 is projected based on recent change
The racial composition of Castle Shannon includes 85.72% White, 4.75% Black or African American, and smaller percentages for Asian, other race and multiracial populations.
White (85.72%)
Two or more races (5.99%)
Black or African American (4.75%)
Asian (2.73%)
Other race (0.81%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 7,061 | 85.72% |
| Two or more races | 493 | 5.99% |
| Black or African American | 391 | 4.75% |
| Asian | 225 | 2.73% |
| Other race | 67 | 0.81% |
Married
Widowed
Divorced
Separated
Never Married
Castle Shannon's average per capita income is $50,422. Household income levels show a median of $62,426. The poverty rate stands at 8.45%.
Name | Median | Mean |
|---|---|---|
| Married Families | $104,375 | - |
| Families | $92,408 | $101,343 |
| Households | $62,426 | $81,574 |
| Non Families | $50,581 | $59,273 |
Average Income
Median Household Income
Poverty Rate