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/19101

19101

ZIP 19101 is in Philadelphia, Pennsylvania, in Philadelphia County; area codes 215, 267 and 445; Eastern time. Philadelphia has 87 ZIP codes in all.

Type
No street area
Time zone
America/New_York
County
Philadelphia
Coordinates
40.0018, -75.1179

The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

This ZIP code has no Census tabulation area of its own. Its point falls inside ZCTA 19134, whose figures describe that area — not this ZIP code.

☼ Live from 19101 — Philadelphia, PA

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 19101 is

This ZIP code has no Census tabulation area, so there is no boundary to draw — the marker is its published point location.

★ Weird and wonderful facts about 19101
  • 🔢 Type 19101 into a pocket calculator and turn it upside down: IOIGI — not quite a word, sorry.
  • ➕ As a number, 19,101 = 3 × 6367. Its digits add up to 12, a total 940 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 100101010011101
  • 🏠 Its numerical neighbours: 19099 (Philadelphia, PA, 4 mi away) and 19102 (Philadelphia, PA, 4 mi away).
  • 🔄 Backwards, 19101 becomes 10191, which is not a ZIP code at all.
  • 👥 10 other ZIP codes are made of exactly the same digits (01119, 09111, 10119, 10911, 11109, 11901, …). The farthest-flung twin is 09111 in APO AE, a military post office, 3,905 miles away.
  • 🧭 Farther north than 56% of all ZIP codes, and farther east than 87%.
  • 🎯1,240 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 19101 and you would come out at 40.00°S, 104.88°E — 827 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 01m of daylight. Shortest: 9h 19m.
🌙 The sky over 19101 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

Business and tax activity

Business establishments21This ZIP21
Employees197This ZIP197
Annual payroll$18,214,000This ZIP$18,214,000

Land area

ZIP codes near 19101

ZIPCityDistance
19019 Philadelphia, PA 0.0 mi
19092 Philadelphia, PA 0.0 mi
19093 Philadelphia, PA 0.0 mi
19155 Philadelphia, PA 0.0 mi
19160 Philadelphia, PA 0.0 mi
19161 Philadelphia, PA 0.0 mi
19162 Philadelphia, PA 0.0 mi
19170 Philadelphia, PA 0.0 mi
19177 Philadelphia, PA 0.0 mi
19178 Philadelphia, PA 0.0 mi

Find every ZIP code within 10 miles of 19101 →

Questions about this ZIP code

Where is ZIP code 19101?

19101 is in Philadelphia, Pennsylvania, in Philadelphia County, part of the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metropolitan area. Its published point location is 40.0018, -75.1179.

What county is 19101 in?

19101 lies in Philadelphia County.

What area code is 19101?

Philadelphia uses area codes 215, 267 and 445, from NANPA's telephone records.

What time zone is 19101 in?

19101 uses America/New_York.

What ZIP codes are near 19101?

The closest are 19019 (0 mi), 19092 (0 mi), 19093 (0 mi), 19155 (0 mi) and 19160 (0 mi).

Is 19101 a PO Box ZIP code?

Possibly. The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

Download or cite

Cite this page

zipcodes.pro. “19101 ZIP Code — Philadelphia, Pennsylvania (Philadelphia County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/19101

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/19101.json

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