There is one unique ZIP code in Walnutport, Pennsylvania and it is 18088. Area code: 610/484.
1
ZIP codes
19.05
sq mi land
0.43
sq mi water
610/484
area code
Walnutport, PA ZIP code map
About Walnutport, PA
Walnutport is a quaint borough located in Northampton County, Pennsylvania. It combines historical charm with small-town living, making it a unique place to visit or call home. With its close-knit community and beautiful natural surroundings, Walnutport offers a peaceful retreat just a short drive from larger urban areas.
Location & geography
Walnutport is positioned in the Lehigh Valley region of Pennsylvania, conveniently located near cities like Allentown, which is approximately 15 miles to the southeast, and Bethlehem, about 12 miles to the south. The area covers a total land area of 19.05 square miles and includes a small water area of 0.43 square miles, giving it a diverse landscape. The terrain features a mixture of wooded areas and open space, providing scenic views and recreational opportunities.
Community & economy
Walnutport is characterized by its friendly and welcoming atmosphere, where neighbors often come together for community events. The local economy is supported by small businesses, light manufacturing industries, and services that cater to residents and visitors alike. Daily life in Walnutport includes outdoor activities, family gatherings, and enjoying the natural beauty of the surrounding areas.
Transportation
Walnutport is accessible via several major roads, including Pennsylvania Route 145, which connects the borough to the broader regional highway network. The nearest airports are Lehigh Valley International Airport, located about 18 miles to the southeast, and Allentown-Bethlehem-Easton International Airport, approximately 20 miles away. Public transportation options are limited, but regional bus services may be available for longer journeys.
History
Walnutport was established in the early 19th century, originally serving as a canal town along the Lehigh Canal, which played a critical role in the region's development. The borough developed key industries related to the canal and local agriculture over the years, contributing to its economic foundation. Notable events in its history include its growth during the canal era and subsequent incorporation as a borough.
Did you know?
A little-known fact about Walnutport is that it is home to the historic Walnutport Canal, which was once a vital transportation route for coal and other goods. This canal is now a part of the area's scenic landscape and offers recreational opportunities for kayaking and fishing.
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions
What is the ZIP code for Walnutport, PA?
Walnutport, PA has one ZIP code: 18088.
What is the main ZIP code for Walnutport, PA?
The primary ZIP code for Walnutport, PA is 18088. The city uses area code 610 or 484 for phone service.
What county is Walnutport, PA in?
Walnutport is located in Northampton County, Pennsylvania.
How many ZIP codes are in Walnutport, PA?
Walnutport, PA has 1 ZIP code.
What is the ZIP code for the Walnutport borough area along the Lehigh River?
Walnutport, Pennsylvania uses ZIP code 18088 for all addresses within the borough, including properties along the Lehigh River waterfront.
What ZIP code should I use when mailing items to businesses in downtown Walnutport?
All mail addressed to downtown Walnutport and the commercial areas should use ZIP code 18088, which covers the entire Walnutport borough in Northampton County.
Need the complete Pennsylvania ZIP code database?Download all PA ZIP codes — Excel, CSV, or Access. Includes lat/lng, county FIPS & timezone.