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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/49931

49931

ZIP 49931 is Houghton, Michigan, in Houghton County; area code 906; Eastern time.

Type
Standard
Time zone
America/Detroit
County
Houghton
Metro area
Houghton, MI
Population
10,475
Coordinates
47.1848, -88.6408
☼ Live from 49931 — Houghton, MI

Weather right now

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Local time: —

Where 49931 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 49931
  • 🔢 Type 49931 into a pocket calculator and turn it upside down: IEGGh — not quite a word, sorry.
  • ➕ As a number, 49,931 = 7 × 7 × 1019. Its digits add up to 26, a total 2,038 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1100001100001011
  • 🏠 Its numerical neighbours: 49930 (Hancock, MI, 3 mi away) and 49934 (Hubbell, MI, 10 mi away).
  • 🔄 Backwards, 49931 becomes 13994, which is not a ZIP code at all.
  • 👥 18 other ZIP codes are made of exactly the same digits (19493, 19934, 19943, 34991, 39149, 39194, …). The farthest-flung twin is 94139 in San Francisco, CA, 1,823 miles away.
  • 🧭 Farther north than 96% of all ZIP codes, and farther west than 52%.
  • 🎯711 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 49931 and you would come out at 47.18°S, 91.36°E — 980 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 55m of daylight. Shortest: 8h 29m.
  • 📏 At 26.4 square miles of land, 49931 is bigger than 43% of ZIP codes — room for about 20 Central Parks.
🌙 The sky over 49931 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population10,475This ZIP10,475
Households3,049This ZIP3,049
Housing units3,507This ZIP3,507
Median age22.1This ZIP22.1Michigan40.2US 38.9
Median household income$50,408This ZIP$50,408Michigan$72,875US $80,734
Median home value$232,800This ZIP$232,800Michigan$231,600US $332,700
Median gross rent$972This ZIP$972Michigan$1,129US $1,413
Bachelor's degree or higher62.1%This ZIP62.1%
Mean commute11.6 minThis ZIP11.6 min
Population density397.4 / sq miThis ZIP397.4 / sq mi

Business and tax activity

Business establishments287This ZIP287
Employees3,727This ZIP3,727
Annual payroll$149,144,000This ZIP$149,144,000
Tax returns filed2,790This ZIP2,790
Total adjusted gross income$219,632,000This ZIP$219,632,000

Land area

Land area26.36 sq miThis ZIP26.36 sq mi
Water area2.75 sq miThis ZIP2.75 sq mi

Other place names in 49931

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

ZIP codes near 49931

ZIPCityDistance
49930 Hancock, MI 3.3 mi
49905 Atlantic Mine, MI 6.0 mi
49921 Dodgeville, MI 7.1 mi
49922 Dollar Bay, MI 8.2 mi
49963 South Range, MI 9.4 mi
49934 Hubbell, MI 9.6 mi
49913 Calumet, MI 9.6 mi
49942 Kearsarge, MI 11.8 mi
49955 Painesdale, MI 12.6 mi
49901 Ahmeek, MI 13.8 mi

Find every ZIP code within 10 miles of 49931 →

Questions about this ZIP code

Where is ZIP code 49931?

49931 is in Houghton, Michigan, in Houghton County, part of the Houghton, MI micropolitan area. Its published point location is 47.1848, -88.6408.

What county is 49931 in?

49931 lies in Houghton County.

What area code is 49931?

Houghton uses area code 906, from NANPA's telephone records.

What time zone is 49931 in?

49931 uses America/Detroit.

How many people live in 49931?

About 10,475 people live in ZIP code 49931, in 3,049 households, at 397.4 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 49931?

$50,408 a year, against $72,875 across Michigan.

What ZIP codes are near 49931?

The closest are 49930 (3.3 mi), 49905 (6 mi), 49921 (7.1 mi), 49922 (8.2 mi) and 49963 (9.4 mi).

Is 49931 a PO Box ZIP code?

49931 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “49931 ZIP Code — Houghton, Michigan (Houghton County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/49931

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