Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/PA/BELFAST

Belfast ZIP codes, Pennsylvania

No ZIP code is named for Belfast, PA; addresses there use a neighbouring town's name. 2 ZIP codes cover it: 18064 and 18040. Its area codes are 484, 610 and 835.

USPS city name
0 ZIP codes
Overlapping the city
2 more
Population
1,144
Area codes
484, 610, 835

NANPA lists no telephone rate centre for Belfast itself, so these are the area codes of the nearest one, Nazareth (0.0 miles). A town on an area-code boundary can differ from its neighbour.

Belfast in numbers

About 1,144 people live in Belfast, in 430 households. The median household income is $77,647 a year, about the same as the Pennsylvania median of $77,971 (US: $80,734). The median owner-occupied home is valued at $267,900 (5% above the Pennsylvania median). The median age is 46.8; 15.3% of adults 25 and over hold a bachelor's degree or higher (35.2% across Pennsylvania); the average commute takes 23 minutes.

Population1,144Belfast1,144
Households430Belfast430
Median age46.8Belfast46.8Pennsylvania40.9US 38.9
Median household income$77,647Belfast$77,647Pennsylvania$77,971US $80,734
Median home value$267,900Belfast$267,900Pennsylvania$254,500US $332,700
Bachelor's degree or higher15.3%Belfast15.3%Pennsylvania35.2%US 35.7%
Mean commute22.6 minBelfast22.6 minPennsylvania26.3 minUS 26.4 min
Population density931 / sq miBelfast931 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Belfast CDP. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes covering Belfast

These ZIP codes cover part of Belfast but are addressed as somewhere else.

ZIP codes overlapping Belfast
ZIP City Type Population Median income Median home
18040 Easton , PA Standard 17,256 $107,016 $360,800
18064 Nazareth , PA Standard 26,970 $103,393 $387,100

Map of Belfast ZIP codes

1804018064

The ZIP codes of Belfast, PA, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Belfast

The nearest larger towns are Eastlawn Gardens (3,722 people, 2.4 mi), Tatamy (1,464 people, 3.0 mi) and Nazareth (6,043 people, 3.5 mi).

Towns near Belfast
TownPopulationDistance
Eastlawn Gardens 3,722 2.4 mi
Nazareth 6,043 3.5 mi
Wind Gap 3,360 4.7 mi
Chestnut Hill 7,086 5.4 mi
Pen Argyl 3,495 6.0 mi
Palmer Heights 3,624 6.4 mi
Bangor 5,163 6.9 mi
Wilson 8,183 7.0 mi
Bath 2,864 7.1 mi
Easton 29,739 7.3 mi
Phillipsburg, NJ 15,299 8.0 mi
Middletown 7,628 9.9 mi
Greenwich, NJ 2,679 10.0 mi
Belvidere, NJ 2,538 11.0 mi

More nearby: every ZIP code in Northampton County · Pennsylvania ZIP codes

Cite this page

zipcodes.pro. “Belfast, PA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/pa/belfast

Underlying data is public domain or openly licensed — sources, vintages and licences.