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/61601

61601

ZIP 61601 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
40.6931, -89.5898

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 61602, whose figures describe that area — not this ZIP code.

☼ Live from 61601 — Peoria, IL

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Where 61601 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 61601
  • 🔢 Type 61601 into a pocket calculator and turn it upside down: IOgIg — not quite a word, sorry.
  • ➕ As a number, 61,601 = 229 × 269. Its digits add up to 14, a total 1,416 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1111000010100001
  • 🏠 Its numerical neighbours: 61572 (Yates City, IL, 25 mi away) and 61602 (Peoria, IL, 1 mi away).
  • 🔄 Backwards, 61601 becomes 10616, which is not a ZIP code at all.
  • 👥 16 other ZIP codes are made of exactly the same digits (06161, 06611, 10166, 16016, 16061, 16160, …). The farthest-flung twin is 06161 in Hartford, CT, 881 miles away.
  • 🧭 Farther north than 63% of all ZIP codes, and farther west than 55%.
  • 🎯478 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 61601 and you would come out at 40.69°S, 90.41°E — 1,148 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 05m of daylight. Shortest: 9h 15m.
🌙 The sky over 61601 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

Business and tax activity

Business establishments8This ZIP8
Employees96This ZIP96
Annual payroll$5,851,000This ZIP$5,851,000

Land area

ZIP codes near 61601

ZIPCityDistance
61629 Peoria, IL 0.1 mi
61634 Peoria, IL 0.3 mi
61636 Peoria, IL 0.5 mi
61637 Peoria, IL 0.6 mi
61606 Peoria, IL 1.3 mi
61602 Peoria, IL 1.3 mi
61625 Peoria, IL 1.3 mi
61603 Peoria, IL 1.4 mi
61639 Peoria, IL 1.8 mi
61635 East Peoria, IL 1.9 mi

Find every ZIP code within 10 miles of 61601 →

Questions about this ZIP code

Where is ZIP code 61601?

61601 is in Peoria, Illinois, in Peoria County, part of the Peoria, IL metropolitan area. Its published point location is 40.6931, -89.5898.

What county is 61601 in?

61601 lies in Peoria County.

What area code is 61601?

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

What time zone is 61601 in?

61601 uses America/Chicago.

What ZIP codes are near 61601?

The closest are 61629 (0.1 mi), 61634 (0.3 mi), 61636 (0.5 mi), 61637 (0.6 mi) and 61606 (1.3 mi).

Is 61601 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. “61601 ZIP Code — Peoria, Illinois (Peoria County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/61601

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