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/18018

18018

ZIP 18018 is in Bethlehem, Pennsylvania, mostly in Lehigh County; area codes 610, 484 and 835; Eastern time. Bethlehem has 6 ZIP codes; the others are 18015, 18016, 18017, 18020 and 18025.

Type
Standard
Time zone
America/New_York
County
Lehigh +1 more
Population
32,965
Coordinates
40.6276, -75.3956
☼ Live from 18018 — Bethlehem, PA

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 18018 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 18018
  • 🔢 Type 18018 into a pocket calculator and turn it upside down: BIOBI — not quite a word, sorry.
  • ➕ As a number, 18,018 = 2 × 3 × 3 × 7 × 11 × 13. Its digits add up to 18, a total 2,332 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 100011001100010
  • 🏠 Its numerical neighbours: 18017 (Bethlehem, PA, 2 mi away) and 18020 (Bethlehem, PA, 5 mi away).
  • 🔄 Backwards, 18018 becomes 81081 — and that is a real ZIP code: Trinchera, CO, 1,560 miles away.
  • 👥 7 other ZIP codes are made of exactly the same digits (18081, 18801, 18810, 80118, 81081, 88011, …). The farthest-flung twin is 88011 in Las Cruces, NM, 1,812 miles away.
  • 🧭 Farther north than 62% of all ZIP codes, and farther east than 86%.
  • 🎯1,221 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 18018 and you would come out at 40.63°S, 104.60°E — 866 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 05m of daylight. Shortest: 9h 16m.
  • 📏 At 5.2 square miles of land, 18018 is bigger than 19% of ZIP codes — room for about 3.9 Central Parks.
🌙 The sky over 18018 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population32,965This ZIP32,965
Households14,119This ZIP14,119
Housing units14,586This ZIP14,586
Median age39.2This ZIP39.2Pennsylvania40.9US 38.9
Median household income$75,417This ZIP$75,417Pennsylvania$77,971US $80,734
Median home value$250,900This ZIP$250,900Pennsylvania$254,500US $332,700
Median gross rent$1,364This ZIP$1,364Pennsylvania$1,209US $1,413
Bachelor's degree or higher38.8%This ZIP38.8%
Mean commute21.1 minThis ZIP21.1 min
Population density6,373.7 / sq miThis ZIP6,373.7 / sq mi

Business and tax activity

Business establishments776This ZIP776
Employees12,363This ZIP12,363
Annual payroll$661,865,000This ZIP$661,865,000
Tax returns filed16,980This ZIP16,980
Total adjusted gross income$1,154,147,000This ZIP$1,154,147,000

Land area

Land area5.17 sq miThis ZIP5.17 sq mi
Water area0.13 sq miThis ZIP0.13 sq mi

Counties 18018 spans

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

CountyShare of this ZIP
Lehigh County 66.3%
Northampton County 33.8%

Other place names in 18018

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

ZIP codes near 18018

ZIPCityDistance
18025 Bethlehem, PA 1.3 mi
18017 Bethlehem, PA 2.3 mi
18109 Allentown, PA 2.5 mi
18002 Lehigh Valley, PA 3.1 mi
18015 Bethlehem, PA 3.2 mi
18101 Allentown, PA 4.2 mi
18032 Catasauqua, PA 4.3 mi
18102 Allentown, PA 4.4 mi
18020 Bethlehem, PA 4.7 mi
18105 Allentown, PA 5.1 mi

Find every ZIP code within 10 miles of 18018 →

Questions about this ZIP code

Where is ZIP code 18018?

18018 is in Bethlehem, Pennsylvania, in Lehigh County, part of the Allentown-Bethlehem-Easton, PA-NJ metropolitan area. Its published point location is 40.6276, -75.3956.

What county is 18018 in?

18018 spans 2 counties: Lehigh County and Northampton County. Most of it falls in Lehigh 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 18018?

Bethlehem uses area codes 610, 484 and 835, from NANPA's telephone records.

What time zone is 18018 in?

18018 uses America/New_York.

How many people live in 18018?

About 32,965 people live in ZIP code 18018, in 14,119 households, at 6,373.7 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 18018?

$75,417 a year, against $77,971 across Pennsylvania.

What ZIP codes are near 18018?

The closest are 18025 (1.3 mi), 18017 (2.3 mi), 18109 (2.5 mi), 18002 (3.1 mi) and 18015 (3.2 mi).

Is 18018 a PO Box ZIP code?

18018 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “18018 ZIP Code — Bethlehem, Pennsylvania (Lehigh County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/18018

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/18018.json

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