Castle Shannon, Pennsylvania Demographics & Population 2026
During the 2020–2024 ACS period, Castle Shannon, Pennsylvania had a total population of 8,209, the 135th largest borough in Pennsylvania, with a median household income of $64,071, which is 18% lower than the state average. The poverty rate is 10.5%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Near full employment with an unemployment rate of just 0.4%.
Castle Shannon Quick Facts
How Castle Shannon Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 8,237 | 8,209 | -0.3% |
| Median household income | $62,426 | $64,071 | +2.6% |
| Median home value | $182,400 | $190,300 | +4.3% |
How Castle Shannon Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 45 | National average: 61
Education
Educational Attainment (Adults 25+)
Castle Shannon Rankings in Pennsylvania
Explore Pennsylvania Rankings
Other Cities in Allegheny County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Pittsburgh | 304,759 | $65,742 | 20.1% | $205,800 |
| Bethel Park | 32,881 | $107,090 | 4.0% | $273,400 |
| Monroeville | 28,295 | $79,218 | 10.7% | $209,800 |
| Plum | 26,723 | $98,705 | 3.6% | $227,600 |
| Allison Park | 22,045 | $113,822 | 3.6% | $346,900 |
| Baldwin | 21,057 | $80,983 | 9.5% | $208,400 |
| West Mifflin | 19,190 | $76,563 | 11.2% | $151,600 |
| McKeesport | 17,380 | $34,219 | 32.0% | $72,700 |
| Franklin Park | 15,235 | $176,875 | 0.7% | $485,600 |
| Whitehall | 14,811 | $89,404 | 6.7% | $236,200 |
Cities Similar to Castle Shannon
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Bellevue | 8,128 | $68,827 | $213,300 | 48.7% | 9.4% |
| Swissvale | 8,418 | $60,341 | $147,000 | 41.4% | 17.0% |
| Carnegie | 7,978 | $67,656 | $171,500 | 36.6% | 11.7% |
| Gettysburg | 8,254 | $54,365 | $241,500 | 44.0% | 14.1% |
| Latrobe | 7,977 | $56,318 | $145,100 | 25.2% | 16.6% |
Population Overview
Castle Shannon is a small city located in Pennsylvania, within Allegheny County. The total population is 8,209. It ranks as the 135th most populous out of 1,991 Census-designated places in Pennsylvania.
Age Demographics
The median age in Castle Shannon is 40.0 years. This is 2% lower than the state median of 40.9 years. Only 14.0% of residents are under 18, indicating fewer families with children.
Economy, Income & Housing
The median household income in Castle Shannon is $64,071. This is 18% lower than the state median of $77,971. It is also 21% lower than the national median of $80,734. The poverty rate stands at 10.5%. This is 10% lower than the state poverty rate of 11.7%. The unemployment rate is 0.4%. This is 93% lower than the state rate of 5.3%. The median home value is $190,300. Housing costs are 25% lower than the state median of $254,500. The home-value-to-income ratio is 3.0x. 59.1% of occupied housing units are owner-occupied. This homeownership rate is 15% lower than the state average of 69.3%.
Race & Ethnicity
Castle Shannon has a predominantly White (non-Hispanic) population, comprising 86.4% of all residents. Hispanic or Latino residents account for 4.2%. The Black or African American population (3.0%) is well below the state average of 10.3%. The Hispanic or Latino population (4.2%) is well below the state average of 8.7%.
Education
37.0% of residents aged 25 and older hold a bachelor's degree or higher. This is 5% higher than the state rate of 35.2%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 96.8%.
Data Sources & Methodology
All demographic data for Castle Shannon, Pennsylvania is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Pennsylvania state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,991 Census-designated places in Pennsylvania. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
Free data download: Get all Pennsylvania city and county demographics as CSV. Download Cities CSV | Download Counties CSV
Frequently Asked Questions
What is the population of Castle Shannon, Pennsylvania?
Castle Shannon, Pennsylvania has a population of 8,209 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Castle Shannon, PA?
The median household income in Castle Shannon is $64,071, which is 21% lower than the national median of $80,734.
What is the poverty rate in Castle Shannon, PA?
The poverty rate in Castle Shannon is 10.5%. This means approximately 854 residents live below the federal poverty line.
What is the racial makeup of Castle Shannon, Pennsylvania?
Castle Shannon's population is 86.4% White, 3.0% Black, 4.2% Hispanic/Latino, and 3.0% Asian.
What is the median home value in Castle Shannon, PA?
The median home value in Castle Shannon is $190,300. The home-value-to-income ratio is 3.0x.
How educated is Castle Shannon, Pennsylvania?
37.0% of adults (25+) in Castle Shannon hold a bachelor's degree or higher, and 10.5% hold a graduate or professional degree.