Census ACS · Pennsylvania
ZIP Code 17331
ZIP code 17331 is located in Pennsylvania with a population of 55,374. The median household income is $76,661 and the median home value is $228,700.
55,374
Population
$76,661
Median Income
$228,700
Median Home Value
41.8
Median Age
Race & Ethnicity
| White | 87.6% |
| Black | 2.8% |
| Asian | 0.0% |
| Hispanic (any race) | 2.1% |
Male: 49.8% · Female: 50.2%
Economy & Income
$76,661
Median Household Income
$38,578
Per Capita Income
6.3%
Poverty Rate
Housing
$228,700
Median Home Value
$1,127
Median Rent
76.4%
Homeownership
Education
90.0%
High School+
22.5%
Bachelor's Degree+
Nearby ZIP Codes
Largest cities in Pennsylvania
Part of Pennsylvania
Metro areas in Pennsylvania
Frequently Asked Questions
ZIP code 17331 in Pennsylvania has a population of 55,374 according to latest Census ACS data.
The median household income in ZIP 17331 is $76,661. The per capita income is $38,578. The poverty rate is 6.3%.
ZIP code 17331 is located in Pennsylvania.
More from Pennsylvania
Data for ZIP Code Tabulation Area (ZCTA) 17331 from the American Community Survey 5-Year estimates. ZCTAs approximately correspond to USPS ZIP code delivery areas but are built from Census blocks and may not match exactly.
What distinguishes ZIP 17331 is density: among the most densely settled of US ZIP codes, around 744 people per square mile. With 55,374 residents, ZIP 17331 is a ZIP code in Pennsylvania.
Household earnings are middling, with a median of $76,661 — near the US median of $78,538. Poverty runs at 6.3%, below the national 12.4%. Homes carry a median value of $228,700, with typical rent around $1,127.
Roughly 22.5% of adults have a bachelor’s, below the national 35.0%.
That density explains much of the rest of the profile in ZIP 17331: denser places lean toward renting, shorter commutes by transit, and a younger working-age mix.
Source: U.S. Census Bureau ACS, 2026.