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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/19016

19016

ZIP 19016 is in Chester, Pennsylvania, in Delaware County; Eastern time. Chester has 2 ZIP codes; the other is 19013.

Type
No street area
Time zone
America/New_York
County
Delaware
Coordinates
39.9340, -75.4060

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 19063, whose figures describe that area — not this ZIP code.

☼ Live from 19016 — Chester, PA

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Where 19016 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 19016
  • 🔢 Type 19016 into a pocket calculator and turn it upside down: gIOGI — not quite a word, sorry.
  • ➕ As a number, 19,016 = 2 × 2 × 2 × 2377. Its digits add up to 17, a total 2,133 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 100101001001000
  • 🏠 Its numerical neighbours: 19015 (Brookhaven, PA, 5 mi away) and 19017 (Chester Heights, PA, 4 mi away).
  • 🔄 Backwards, 19016 becomes 61091 — and that is a real ZIP code: Woosung, IL, 750 miles away.
  • 👥 30 other ZIP codes are made of exactly the same digits (01961, 06119, 06911, 10169, 10916, 11096, …). The farthest-flung twin is 96011 in Big Bend, CA, 2,414 miles away.
  • 🧭 Farther north than 56% of all ZIP codes, and farther east than 86%.
  • 🎯1,225 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 19016 and you would come out at 39.93°S, 104.59°E — 836 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 00m of daylight. Shortest: 9h 20m.
🌙 The sky over 19016 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

Business and tax activity

Business establishments7This ZIP7
Employees86This ZIP86
Annual payroll$4,952,000This ZIP$4,952,000

Land area

ZIP codes near 19016

ZIPCityDistance
19037 Glen Riddle Lima, PA 0.0 mi
19088 Wayne, PA 0.0 mi
19091 Media, PA 0.0 mi
19339 Concordville, PA 0.0 mi
19063 Media, PA 0.9 mi
19065 Media, PA 1.4 mi
19052 Lenni, PA 3.3 mi
19039 Gradyville, PA 3.4 mi
19086 Wallingford, PA 3.5 mi
19064 Springfield, PA 3.6 mi

Find every ZIP code within 10 miles of 19016 →

Questions about this ZIP code

Where is ZIP code 19016?

19016 is in Chester, Pennsylvania, in Delaware County, part of the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metropolitan area. Its published point location is 39.9340, -75.4060.

What county is 19016 in?

19016 lies in Delaware County.

What time zone is 19016 in?

19016 uses America/New_York.

What ZIP codes are near 19016?

The closest are 19037 (0 mi), 19088 (0 mi), 19091 (0 mi), 19339 (0 mi) and 19063 (0.9 mi).

Is 19016 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.

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Cite this page

zipcodes.pro. “19016 ZIP Code — Chester, Pennsylvania (Delaware County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/19016

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/19016.json

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