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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/18034

18034

ZIP 18034 is Center Valley, Pennsylvania, in Lehigh County; area codes 484 and 610; Eastern time.

Type
Standard
Time zone
America/New_York
County
Lehigh
Population
9,209
Coordinates
40.5414, -75.4190
☼ Live from 18034 — Center Valley, PA

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Where 18034 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 18034
  • 🔢 Type 18034 into a pocket calculator and turn it upside down: hEOBI — not quite a word, sorry.
  • ➕ As a number, 18,034 = 2 × 71 × 127. Its digits add up to 16, a total 1,922 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 100011001110010
  • 🏠 Its numerical neighbours: 18032 (Catasauqua, PA, 8 mi away) and 18035 (Cherryville, PA, 16 mi away).
  • 🔄 Backwards, 18034 becomes 43081 — and that is a real ZIP code: Westerville, OH, 395 miles away.
  • 👥 54 other ZIP codes are made of exactly the same digits (01438, 01834, 01843, 03814, 03841, 08314, …). The farthest-flung twin is 84013 in Cedar Valley, UT, 1,915 miles away.
  • 🧭 Farther north than 61% of all ZIP codes, and farther east than 86%.
  • 🎯1,220 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 18034 and you would come out at 40.54°S, 104.58°E — 863 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 04m of daylight. Shortest: 9h 16m.
  • 📏 At 11.0 square miles of land, 18034 is bigger than 28% of ZIP codes — room for about 8.4 Central Parks.
🌙 The sky over 18034 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population9,209This ZIP9,209
Households2,922This ZIP2,922
Housing units3,029This ZIP3,029
Median age42.5This ZIP42.5Pennsylvania40.9US 38.9
Median household income$153,200This ZIP$153,200Pennsylvania$77,971US $80,734
Median home value$475,900This ZIP$475,900Pennsylvania$254,500US $332,700
Median gross rent$1,760This ZIP$1,760Pennsylvania$1,209US $1,413
Bachelor's degree or higher51.6%This ZIP51.6%
Mean commute22.4 minThis ZIP22.4 min
Population density836.4 / sq miThis ZIP836.4 / sq mi

Business and tax activity

Business establishments266This ZIP266
Employees8,193This ZIP8,193
Annual payroll$643,359,000This ZIP$643,359,000
Tax returns filed4,200This ZIP4,200
Total adjusted gross income$679,911,000This ZIP$679,911,000

Land area

Land area11.01 sq miThis ZIP11.01 sq mi
Water area0.06 sq miThis ZIP0.06 sq mi

Other place names in 18034

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

ZIP codes near 18034

ZIPCityDistance
18060 Limeport, PA 2.7 mi
18036 Coopersburg, PA 2.7 mi
18049 Emmaus, PA 4.0 mi
18098 Emmaus, PA 4.1 mi
18099 Emmaus, PA 4.1 mi
18981 Zionhill, PA 4.2 mi
18103 Allentown, PA 4.2 mi
18015 Bethlehem, PA 4.2 mi
18101 Allentown, PA 5.0 mi
18102 Allentown, PA 5.5 mi

Find every ZIP code within 10 miles of 18034 →

Questions about this ZIP code

Where is ZIP code 18034?

18034 is in Center Valley, Pennsylvania, in Lehigh County, part of the Allentown-Bethlehem-Easton, PA-NJ metropolitan area. Its published point location is 40.5414, -75.4190.

What county is 18034 in?

18034 lies in Lehigh County.

What area code is 18034?

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

What time zone is 18034 in?

18034 uses America/New_York.

How many people live in 18034?

About 9,209 people live in ZIP code 18034, in 2,922 households, at 836.4 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 18034?

$153,200 a year, against $77,971 across Pennsylvania.

What ZIP codes are near 18034?

The closest are 18060 (2.7 mi), 18036 (2.7 mi), 18049 (4 mi), 18098 (4.1 mi) and 18099 (4.1 mi).

Is 18034 a PO Box ZIP code?

18034 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “18034 ZIP Code — Center Valley, Pennsylvania (Lehigh County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/18034

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