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/61656

61656

ZIP 61656 is in Peoria, Illinois, in Peoria County; area codes 309 and 861; Central time. Peoria has 29 ZIP codes in all.

Type
No street area
Time zone
America/Chicago
County
Peoria
Metro area
Peoria, IL
Coordinates
40.7442, -89.7184

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 61528, whose figures describe that area — not this ZIP code.

☼ Live from 61656 — Peoria, IL

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Where 61656 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 61656
  • 🔢 Type 61656 into a pocket calculator and turn it upside down: gSgIg — not quite a word, sorry.
  • ➕ As a number, 61,656 = 2 × 2 × 2 × 3 × 7 × 367. Its digits add up to 24, a total 2,425 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1111000011011000
  • 🏠 Its numerical neighbours: 61655 (Peoria, IL, 0 mi away) and 61701 (Bloomington, IL, 42 mi away).
  • 🔄 Backwards, 61656 becomes 65616 — and that is a real ZIP code: Branson, MO, 340 miles away.
  • 👥 9 other ZIP codes are made of exactly the same digits (15666, 16656, 16665, 56166, 56661, 65616, …). The farthest-flung twin is 16665 in Newry, PA, 592 miles away.
  • 🧭 Farther north than 64% of all ZIP codes, and farther west than 55%.
  • 🎯471 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 61656 and you would come out at 40.74°S, 90.28°E — 1,140 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 06m of daylight. Shortest: 9h 15m.
🌙 The sky over 61656 today
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Source: USGS.

Land area

ZIP codes near 61656

ZIPCityDistance
61612 Peoria, IL 0.0 mi
61630 Peoria, IL 0.0 mi
61643 Peoria, IL 0.0 mi
61650 Peoria, IL 0.0 mi
61651 Peoria, IL 0.0 mi
61653 Peoria, IL 0.0 mi
61654 Peoria, IL 0.0 mi
61655 Peoria, IL 0.0 mi
61528 Edwards, IL 2.3 mi
61615 Peoria, IL 2.4 mi

Find every ZIP code within 10 miles of 61656 →

Questions about this ZIP code

Where is ZIP code 61656?

61656 is in Peoria, Illinois, in Peoria County, part of the Peoria, IL metropolitan area. Its published point location is 40.7442, -89.7184.

What county is 61656 in?

61656 lies in Peoria County.

What area code is 61656?

Peoria uses area codes 309 and 861, from NANPA's telephone records.

What time zone is 61656 in?

61656 uses America/Chicago.

What ZIP codes are near 61656?

The closest are 61612 (0 mi), 61630 (0 mi), 61643 (0 mi), 61650 (0 mi) and 61651 (0 mi).

Is 61656 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. “61656 ZIP Code — Peoria, Illinois (Peoria County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/61656

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/61656.json

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