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zipcodes.pro — ZIP/48721

48721

ZIP 48721 is Black River, Michigan, in Alcona County; area code 989; Eastern time.

Type
Standard
Time zone
America/Detroit
County
Alcona
Metro area
none
Population
406
Coordinates
44.7968, -83.3292
☼ Live from 48721 — Black River, MI

Weather right now

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NEXRAD radar
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Local time: —

Where 48721 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 48721
  • 🔢 Type 48721 into a pocket calculator and turn it upside down: IZLBh — not quite a word, sorry.
  • ➕ As a number, 48,721 = 83 × 587. Its digits add up to 22, a total 2,607 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1011111001010001
  • 🏠 Its numerical neighbours: 48720 (Bay Port, MI, 67 mi away) and 48722 (Bridgeport, MI, 103 mi away).
  • 🔄 Backwards, 48721 becomes 12784 — and that is a real ZIP code: Thompsonville, NY, 489 miles away.
  • 👥 49 other ZIP codes are made of exactly the same digits (12487, 12748, 12784, 12847, 12874, 14728, …). The farthest-flung twin is 84721 in Cedar City, UT, 1,611 miles away.
  • 🧭 Farther north than 90% of all ZIP codes, and farther east than 62%.
  • 🎯850 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 48721 and you would come out at 44.80°S, 96.67°E — 1,277 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 35m of daylight. Shortest: 8h 47m.
  • 📏 At 28.0 square miles of land, 48721 is bigger than 44% of ZIP codes — room for about 21 Central Parks.
🌙 The sky over 48721 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population406This ZIP406
Households228This ZIP228
Housing units479This ZIP479
Median age60.8This ZIP60.8Michigan40.2US 38.9
Median household income$60,500This ZIP$60,500Michigan$72,875US $80,734
Median home value$226,700This ZIP$226,700Michigan$231,600US $332,700
Bachelor's degree or higher22.4%This ZIP22.4%
Mean commute40.1 minThis ZIP40.1 min
Population density14.5 / sq miThis ZIP14.5 / sq mi

Business and tax activity

Business establishments6This ZIP6
Employees47This ZIP47
Annual payroll$1,733,000This ZIP$1,733,000
Tax returns filed210This ZIP210
Total adjusted gross income$13,915,000This ZIP$13,915,000

Land area

Land area27.99 sq miThis ZIP27.99 sq mi
Water area9.32 sq miThis ZIP9.32 sq mi

ZIP codes near 48721

ZIPCityDistance
48742 Lincoln, MI 7.7 mi
48762 Spruce, MI 8.2 mi
49766 Ossineke, MI 9.2 mi
48740 Harrisville, MI 9.4 mi
49747 Hubbard Lake, MI 15.0 mi
48738 Greenbush, MI 17.1 mi
48705 Barton City, MI 17.5 mi
48745 Mikado, MI 17.8 mi
49744 Herron, MI 21.0 mi
49707 Alpena, MI 21.8 mi

Find every ZIP code within 10 miles of 48721 →

Questions about this ZIP code

Where is ZIP code 48721?

48721 is in Black River, Michigan, in Alcona County. Its published point location is 44.7968, -83.3292.

What county is 48721 in?

48721 lies in Alcona County.

What area code is 48721?

Black River uses area code 989, from NANPA's telephone records.

What time zone is 48721 in?

48721 uses America/Detroit.

How many people live in 48721?

About 406 people live in ZIP code 48721, in 228 households, at 14.5 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 48721?

$60,500 a year, against $72,875 across Michigan.

What ZIP codes are near 48721?

The closest are 48742 (7.7 mi), 48762 (8.2 mi), 49766 (9.2 mi), 48740 (9.4 mi) and 49747 (15 mi).

Is 48721 a PO Box ZIP code?

48721 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “48721 ZIP Code — Black River, Michigan (Alcona County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/48721

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