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/62306

62306

ZIP 62306 is in Quincy, Illinois, in Adams County; area codes 217 and 447; Central time. Quincy has 3 ZIP codes; the others are 62301 and 62305.

Type
No street area
Time zone
America/Chicago
County
Adams
Metro area
Quincy, IL-MO
Coordinates
39.9356, -91.4099

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 62301, whose figures describe that area — not this ZIP code.

☼ Live from 62306 — Quincy, IL

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Where 62306 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 62306
  • 🔢 Type 62306 into a pocket calculator and turn it upside down: gOEZg — not quite a word, sorry.
  • ➕ As a number, 62,306 = 2 × 31153. Its digits add up to 17, a total 2,133 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1111001101100010
  • 🏠 Its numerical neighbours: 62305 (Quincy, IL, 4 mi away) and 62311 (Augusta, IL, 32 mi away).
  • 🔄 Backwards, 62306 becomes 60326, which is not a ZIP code at all.
  • 👥 29 other ZIP codes are made of exactly the same digits (02366, 02663, 03266, 06263, 20636, 23066, …). The farthest-flung twin is 02663 in South Wellfleet, MA, 1,125 miles away.
  • 🧭 Farther north than 56% of all ZIP codes, and farther west than 60%.
  • 🎯380 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 62306 and you would come out at 39.94°S, 88.59°E — 1,108 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 00m of daylight. Shortest: 9h 20m.
🌙 The sky over 62306 today
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Source: USGS.

Business and tax activity

Business establishments12This ZIP12
Employees383This ZIP383
Annual payroll$21,225,000This ZIP$21,225,000

Land area

ZIP codes near 62306

ZIPCityDistance
62301 Quincy, IL 1.2 mi
62305 Quincy, IL 3.5 mi
63471 Taylor, MO 4.6 mi
63448 La Grange, MO 8.9 mi
62338 Fowler, IL 10.1 mi
62360 Payson, IL 11.3 mi
63461 Palmyra, MO 12.0 mi
62376 Ursa, IL 12.3 mi
62359 Paloma, IL 12.6 mi
63454 Maywood, MO 12.8 mi

Find every ZIP code within 10 miles of 62306 →

Questions about this ZIP code

Where is ZIP code 62306?

62306 is in Quincy, Illinois, in Adams County, part of the Quincy, IL-MO micropolitan area. Its published point location is 39.9356, -91.4099.

What county is 62306 in?

62306 lies in Adams County.

What area code is 62306?

Quincy uses area codes 217 and 447, from NANPA's telephone records.

What time zone is 62306 in?

62306 uses America/Chicago.

What ZIP codes are near 62306?

The closest are 62301 (1.2 mi), 62305 (3.5 mi), 63471 (4.6 mi), 63448 (8.9 mi) and 62338 (10.1 mi).

Is 62306 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. “62306 ZIP Code — Quincy, Illinois (Adams County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/62306

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curl https://zipcodes.pro/zip/62306.json

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