ZIP Codes in Pennsylvania
Pennsylvania's ZIP codes cover a state anchored by two very different major cities - Philadelphia in the southeast, one of the oldest and most historically significant cities in the country, and Pittsburgh in the southwest, a former steel town that has reinvented itself around healthcare, education, and tech. With around 13 million residents, Pennsylvania's population spreads across these two metro poles and a long stretch of smaller cities and rural counties in between.
How ZIP Codes Are Organized Across the State
Pennsylvania's ZIP codes fall within the 15000–19699 range under the USPS system. Pittsburgh and the surrounding southwestern region occupy the lower end around 152xx, Harrisburg, the state capital, sits near 171xx, and Philadelphia, in the southeast corner near the New Jersey border, carries codes closer to 191xx.
Pennsylvania's Major Metro Areas by Population
The chart below shows how population splits between Philadelphia and Pittsburgh, Pennsylvania's two dominant metro areas, with Allentown rounding out the state's third major hub.
Philadelphia's ZIP codes cover one of the most historically significant cities in the country, birthplace of American independence, with a modern economy spanning healthcare, education, and finance. Pittsburgh, on the opposite end of the state, has transformed dramatically since its steel-industry heyday into a hub for robotics, healthcare, and tech, anchored by Carnegie Mellon University and the University of Pittsburgh. For a broader comparison, our full US ZIP code directory shows how Pennsylvania's ranges fit alongside every other state.
Central Pennsylvania and the Susquehanna Valley
Between Philadelphia and Pittsburgh, central Pennsylvania - including Harrisburg, the state capital, along the Susquehanna River - carries a more rural, agricultural character, home to significant Amish and Mennonite communities, particularly around Lancaster County. ZIP codes here reflect a slower pace of development than the state's two major metro corners, with tourism built substantially around this distinctive cultural heritage.
Northeastern Pennsylvania and the Coal Region
Northeastern Pennsylvania, including Scranton and Wilkes-Barre, has a strong historical connection to coal mining, an industry that has declined significantly but still shapes the region's identity and economy. This area borders New York to the north, and ZIP codes here reflect ongoing efforts to diversify away from the coal-era economic base toward healthcare, education, and logistics.
Why ZIP Codes Matter Beyond Mail
In Pennsylvania, ZIP codes carry particular weight in the healthcare and education sectors, given the concentration of major hospital systems and universities in both Philadelphia and Pittsburgh - these institutions rely on ZIP-level data extensively for patient logistics and student recruitment. Pennsylvania's status as a key presidential swing state also means its ZIP codes see significant political attention during election cycles. And the state's Amish and Mennonite tourism industry in central Pennsylvania uses ZIP-level data to define service areas for visitors.
Border Regions and Neighboring States
Pennsylvania shares borders with six states, more than most Northeast states. To the east, Philadelphia sits close to the New Jersey border, sharing a tightly linked metro economy. To the west, Pittsburgh borders Ohio and West Virginia, connecting into the broader industrial Rust Belt. And to the north, New York shares similar rural upstate terrain with northern Pennsylvania.
Finding the Right ZIP Code
Use the list below to browse Pennsylvania's ZIP codes by city, county, or population - sorted so the most populous areas surface first. Each entry links through to a detailed page with additional demographic data. If you're trying to identify the ZIP code for a specific address rather than browsing by city, the search tool at the top of this page will get you there faster than scrolling through the full list.
Frequently Asked Questions
How many ZIP codes does Pennsylvania have?
Pennsylvania has well over a thousand ZIP codes, split between its two major metro areas, Philadelphia and Pittsburgh, and a wide spread of smaller cities and rural counties in between.
What ZIP code range does Pennsylvania use?
Pennsylvania ZIP codes generally fall between 15000 and 19699, with Pittsburgh toward the lower end and Philadelphia further along the range.
Which Pennsylvania city has the most ZIP codes?
Philadelphia, as the state's largest city, accounts for the greatest number of individual ZIP codes, with Pittsburgh forming a substantial secondary cluster.
Can I look up a Pennsylvania ZIP code by city name?
Yes, use the search tool on this page or browse the full list below, which is organized by city and sorted by population.
Whether you're relocating to Philadelphia or Pittsburgh, researching property in Amish Country near Lancaster, or simply trying to pin down the right ZIP code for a specific Pennsylvania address, the data below covers every corner of the state.