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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/19403

19403

ZIP 19403 is in Norristown, Pennsylvania, in Montgomery County; Eastern time. Norristown has 3 ZIP codes; the others are 19401 and 19404.

Type
Standard
Time zone
America/New_York
County
Montgomery
Population
44,017
Coordinates
40.1485, -75.3791
☼ Live from 19403 — Norristown, PA

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Local time: —

Where 19403 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 19403
  • 🔢 Type 19403 into a pocket calculator and turn it upside down: EOhGI — not quite a word, sorry.
  • ➕ 19403 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 17, a total 2,133 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 100101111001011
  • 🏠 Its numerical neighbours: 19401 (Norristown, PA, 3 mi away) and 19404 (Norristown, PA, 5 mi away).
  • 🔄 Backwards, 19403 becomes 30491, which is not a ZIP code at all.
  • 👥 50 other ZIP codes are made of exactly the same digits (01349, 09143, 13409, 13490, 13904, 14039, …). The farthest-flung twin is 09143 in APO AE, a military post office, 3,920 miles away.
  • 🧭 Farther north than 58% of all ZIP codes, and farther east than 87%.
  • 🎯1,225 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 19403 and you would come out at 40.15°S, 104.62°E — 844 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 02m of daylight. Shortest: 9h 19m.
  • 📏 At 22.4 square miles of land, 19403 is bigger than 40% of ZIP codes — room for about 17 Central Parks.
🌙 The sky over 19403 today
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🌋 Shake report
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Source: USGS.

People and housing

Population44,017This ZIP44,017
Households18,988This ZIP18,988
Housing units19,744This ZIP19,744
Median age45.3This ZIP45.3Pennsylvania40.9US 38.9
Median household income$104,071This ZIP$104,071Pennsylvania$77,971US $80,734
Median home value$375,100This ZIP$375,100Pennsylvania$254,500US $332,700
Median gross rent$1,709This ZIP$1,709Pennsylvania$1,209US $1,413
Bachelor's degree or higher51.0%This ZIP51.0%
Mean commute27.5 minThis ZIP27.5 min
Population density1,967.9 / sq miThis ZIP1,967.9 / sq mi

Business and tax activity

Business establishments1,093This ZIP1,093
Employees23,458This ZIP23,458
Annual payroll$1,754,615,000This ZIP$1,754,615,000
Tax returns filed23,920This ZIP23,920
Total adjusted gross income$2,559,870,000This ZIP$2,559,870,000

Land area

Land area22.37 sq miThis ZIP22.37 sq mi
Water area0.34 sq miThis ZIP0.34 sq mi

Other place names in 19403

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

ZIP codes near 19403

ZIPCityDistance
19409 Fairview Village, PA 0.8 mi
19415 Eagleville, PA 1.5 mi
19408 Eagleville, PA 1.9 mi
19401 Norristown, PA 2.8 mi
19430 Creamery, PA 3.3 mi
19490 Worcester, PA 3.6 mi
19406 King Of Prussia, PA 3.7 mi
19405 Bridgeport, PA 4.1 mi
19426 Collegeville, PA 4.2 mi
19456 Oaks, PA 4.3 mi

Find every ZIP code within 10 miles of 19403 →

Questions about this ZIP code

Where is ZIP code 19403?

19403 is in Norristown, Pennsylvania, in Montgomery County, part of the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metropolitan area. Its published point location is 40.1485, -75.3791.

What county is 19403 in?

19403 lies in Montgomery County.

What time zone is 19403 in?

19403 uses America/New_York.

How many people live in 19403?

About 44,017 people live in ZIP code 19403, in 18,988 households, at 1,967.9 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 19403?

$104,071 a year, against $77,971 across Pennsylvania.

What ZIP codes are near 19403?

The closest are 19409 (0.8 mi), 19415 (1.5 mi), 19408 (1.9 mi), 19401 (2.8 mi) and 19430 (3.3 mi).

Is 19403 a PO Box ZIP code?

19403 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “19403 ZIP Code — Norristown, Pennsylvania (Montgomery County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/19403

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