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 — ZIP/18055

18055

ZIP 18055 is Hellertown, Pennsylvania, mostly in Northampton County; area codes 484 and 610; Eastern time.

Type
Standard
Time zone
America/New_York
County
Northampton +1 more
Population
12,117
Coordinates
40.5916, -75.3044
☼ Live from 18055 — Hellertown, PA

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 18055 is

Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.

★ Weird and wonderful facts about 18055
  • 🔢 Type 18055 into a pocket calculator and turn it upside down: SSOBI — not quite a word, sorry.
  • ➕ As a number, 18,055 = 5 × 23 × 157. Its digits add up to 19, a total 2,454 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 100011010000111
  • 🏠 Its numerical neighbours: 18054 (Green Lane, PA, 18 mi away) and 18056 (Hereford, PA, 16 mi away).
  • 🔄 Backwards, 18055 becomes 55081, which is not a ZIP code at all.
  • 👥 28 other ZIP codes are made of exactly the same digits (01585, 05158, 05851, 08515, 08551, 15085, …). The farthest-flung twin is 85051 in Phoenix, AZ, 2,071 miles away.
  • 🧭 Farther north than 62% of all ZIP codes, and farther east than 87%.
  • 🎯1,226 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 18055 and you would come out at 40.59°S, 104.70°E — 861 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 05m of daylight. Shortest: 9h 16m.
  • 📏 At 20.0 square miles of land, 18055 is bigger than 37% of ZIP codes — room for about 15 Central Parks.
🌙 The sky over 18055 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population12,117This ZIP12,117
Households4,703This ZIP4,703
Housing units4,953This ZIP4,953
Median age46.1This ZIP46.1Pennsylvania40.9US 38.9
Median household income$90,234This ZIP$90,234Pennsylvania$77,971US $80,734
Median home value$324,000This ZIP$324,000Pennsylvania$254,500US $332,700
Median gross rent$1,397This ZIP$1,397Pennsylvania$1,209US $1,413
Bachelor's degree or higher37.0%This ZIP37.0%
Mean commute26.9 minThis ZIP26.9 min
Population density606.3 / sq miThis ZIP606.3 / sq mi

Business and tax activity

Business establishments245This ZIP245
Employees2,189This ZIP2,189
Annual payroll$76,600,000This ZIP$76,600,000
Tax returns filed6,310This ZIP6,310
Total adjusted gross income$615,013,000This ZIP$615,013,000

Land area

Land area19.98 sq miThis ZIP19.98 sq mi
Water area0.21 sq miThis ZIP0.21 sq mi

Counties 18055 spans

A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.

CountyShare of this ZIP
Northampton County 94.3%
Bucks County 5.7%

Other place names in 18055

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 18055

ZIPCityDistance
18081 Springtown, PA 2.3 mi
18015 Bethlehem, PA 3.3 mi
18077 Riegelsville, PA 3.8 mi
18025 Bethlehem, PA 4.2 mi
18039 Durham, PA 4.4 mi
18018 Bethlehem, PA 5.4 mi
18042 Easton, PA 5.4 mi
18020 Bethlehem, PA 5.7 mi
18930 Kintnersville, PA 6.3 mi
18017 Bethlehem, PA 6.4 mi

Find every ZIP code within 10 miles of 18055 →

Questions about this ZIP code

Where is ZIP code 18055?

18055 is in Hellertown, Pennsylvania, in Northampton County, part of the Allentown-Bethlehem-Easton, PA-NJ metropolitan area. Its published point location is 40.5916, -75.3044.

What county is 18055 in?

18055 spans 2 counties: Northampton County and Bucks County. Most of it falls in Northampton County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.

What area code is 18055?

Hellertown uses area codes 484 and 610, from NANPA's telephone records.

What time zone is 18055 in?

18055 uses America/New_York.

How many people live in 18055?

About 12,117 people live in ZIP code 18055, in 4,703 households, at 606.3 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What is the median household income in 18055?

$90,234 a year, against $77,971 across Pennsylvania.

What ZIP codes are near 18055?

The closest are 18081 (2.3 mi), 18015 (3.3 mi), 18077 (3.8 mi), 18025 (4.2 mi) and 18039 (4.4 mi).

Is 18055 a PO Box ZIP code?

18055 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “18055 ZIP Code — Hellertown, Pennsylvania (Northampton County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/18055

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/18055.json

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