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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/49401

49401

ZIP 49401 is Allendale, Michigan, in Ottawa County; area code 616; Eastern time.

Type
Standard
Time zone
America/Detroit
County
Ottawa
Population
29,674
Coordinates
42.9776, -85.9586
☼ Live from 49401 — Allendale, MI

Weather right now

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Local time: —

Where 49401 is

Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.

★ Weird and wonderful facts about 49401
  • 🔢 Type 49401 into a pocket calculator and turn it upside down: IOhGh — not quite a word, sorry.
  • ➕ As a number, 49,401 = 3 × 3 × 11 × 499. Its digits add up to 18, a total 2,332 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1100000011111001
  • 🏠 Its numerical neighbours: 49357 (Ada, MI, 24 mi away) and 49402 (Branch, MI, 67 mi away).
  • 🔄 Backwards, 49401 becomes 10494, which is not a ZIP code at all.
  • 👥 28 other ZIP codes are made of exactly the same digits (01944, 04419, 04491, 04941, 09144, 14094, …). The farthest-flung twin is 09144 in APO AE, a military post office, 4,202 miles away.
  • 🧭 Farther north than 82% of all ZIP codes, and farther east than 54%.
  • 🎯689 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 49401 and you would come out at 42.98°S, 94.04°E — 1,216 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 22m of daylight. Shortest: 9h 00m.
  • 📏 At 31.9 square miles of land, 49401 is bigger than 47% of ZIP codes — room for about 24 Central Parks.
🌙 The sky over 49401 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population29,674This ZIP29,674
Households8,987This ZIP8,987
Housing units9,441This ZIP9,441
Median age21.8This ZIP21.8Michigan40.2US 38.9
Median household income$74,880This ZIP$74,880Michigan$72,875US $80,734
Median home value$321,500This ZIP$321,500Michigan$231,600US $332,700
Median gross rent$1,114This ZIP$1,114Michigan$1,129US $1,413
Bachelor's degree or higher40.8%This ZIP40.8%
Mean commute21.3 minThis ZIP21.3 min
Population density929.9 / sq miThis ZIP929.9 / sq mi

Business and tax activity

Business establishments299This ZIP299
Employees3,794This ZIP3,794
Annual payroll$152,821,000This ZIP$152,821,000
Tax returns filed8,790This ZIP8,790
Total adjusted gross income$656,608,000This ZIP$656,608,000

Land area

Land area31.91 sq miThis ZIP31.91 sq mi
Water area0.92 sq miThis ZIP0.92 sq mi

Other place names in 49401

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 49401

ZIPCityDistance
49430 Lamont, MI 3.8 mi
49404 Coopersville, MI 5.9 mi
49435 Marne, MI 7.0 mi
49428 Jenison, MI 7.4 mi
49426 Hudsonville, MI 8.7 mi
49534 Grand Rapids, MI 8.7 mi
49464 Zeeland, MI 9.3 mi
49429 Jenison, MI 9.7 mi
49448 Nunica, MI 9.9 mi
49417 Grand Haven, MI 10.0 mi

Find every ZIP code within 10 miles of 49401 →

Questions about this ZIP code

Where is ZIP code 49401?

49401 is in Allendale, Michigan, in Ottawa County, part of the Grand Rapids-Wyoming-Kentwood, MI metropolitan area. Its published point location is 42.9776, -85.9586.

What county is 49401 in?

49401 lies in Ottawa County.

What area code is 49401?

Allendale uses area code 616, from NANPA's telephone records.

What time zone is 49401 in?

49401 uses America/Detroit.

How many people live in 49401?

About 29,674 people live in ZIP code 49401, in 8,987 households, at 929.9 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What is the median household income in 49401?

$74,880 a year, against $72,875 across Michigan.

What ZIP codes are near 49401?

The closest are 49430 (3.8 mi), 49404 (5.9 mi), 49435 (7 mi), 49428 (7.4 mi) and 49426 (8.7 mi).

Is 49401 a PO Box ZIP code?

49401 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “49401 ZIP Code — Allendale, Michigan (Ottawa County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/49401

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