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zipcodes.pro — ZIP/48421

48421

ZIP 48421 is Columbiaville, Michigan, mostly in Lapeer County; area code 810; Eastern time.

Type
Standard
Time zone
America/Detroit
County
Lapeer +1 more
Population
6,935
Coordinates
43.1555, -83.3932
☼ Live from 48421 — Columbiaville, MI

Weather right now

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Local time: —

Where 48421 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 48421
  • 🔢 Type 48421 into a pocket calculator and turn it upside down: IZhBh — not quite a word, sorry.
  • ➕ As a number, 48,421 = 41 × 1181. Its digits add up to 19, a total 2,454 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1011110100100101
  • 🏠 Its numerical neighbours: 48420 (Clio, MI, 16 mi away) and 48422 (Croswell, MI, 38 mi away).
  • 🔄 Backwards, 48421 becomes 12484 — and that is a real ZIP code: Stone Ridge, NY, 478 miles away.
  • 👥 25 other ZIP codes are made of exactly the same digits (12448, 12484, 12844, 14428, 14482, 14824, …). The farthest-flung twin is 84124 in Salt Lake City, UT, 1,463 miles away.
  • 🧭 Farther north than 84% of all ZIP codes, and farther east than 62%.
  • 🎯818 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 48421 and you would come out at 43.16°S, 96.61°E — 1,303 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 23m of daylight. Shortest: 8h 59m.
  • 📏 At 41.5 square miles of land, 48421 is bigger than 54% of ZIP codes — room for about 31 Central Parks.
🌙 The sky over 48421 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population6,935This ZIP6,935
Households2,632This ZIP2,632
Housing units3,049This ZIP3,049
Median age44.4This ZIP44.4Michigan40.2US 38.9
Median household income$71,114This ZIP$71,114Michigan$72,875US $80,734
Median home value$220,600This ZIP$220,600Michigan$231,600US $332,700
Median gross rent$654This ZIP$654Michigan$1,129US $1,413
Bachelor's degree or higher20.9%This ZIP20.9%
Mean commute38.2 minThis ZIP38.2 min
Population density167.3 / sq miThis ZIP167.3 / sq mi

Business and tax activity

Business establishments53This ZIP53
Employees198This ZIP198
Annual payroll$8,055,000This ZIP$8,055,000
Tax returns filed3,240This ZIP3,240
Total adjusted gross income$210,097,000This ZIP$210,097,000

Land area

Land area41.46 sq miThis ZIP41.46 sq mi
Water area3.08 sq miThis ZIP3.08 sq mi

Counties 48421 spans

A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.

CountyShare of this ZIP
Lapeer County 95.0%
Genesee County 5.0%

Other place names in 48421

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

ZIP codes near 48421

ZIPCityDistance
48464 Otter Lake, MI 4.0 mi
48463 Otisville, MI 6.4 mi
48435 Fostoria, MI 6.4 mi
48446 Lapeer, MI 7.5 mi
48461 North Branch, MI 9.8 mi
48423 Davison, MI 10.0 mi
48746 Millington, MI 10.4 mi
48437 Genesee, MI 11.7 mi
48412 Attica, MI 12.5 mi
48506 Flint, MI 13.2 mi

Find every ZIP code within 10 miles of 48421 →

Questions about this ZIP code

Where is ZIP code 48421?

48421 is in Columbiaville, Michigan, in Lapeer County, part of the Detroit-Warren-Dearborn, MI metropolitan area. Its published point location is 43.1555, -83.3932.

What county is 48421 in?

48421 spans 2 counties: Lapeer County and Genesee County. Most of it falls in Lapeer County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.

What area code is 48421?

Columbiaville uses area code 810, from NANPA's telephone records.

What time zone is 48421 in?

48421 uses America/Detroit.

How many people live in 48421?

About 6,935 people live in ZIP code 48421, in 2,632 households, at 167.3 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 48421?

$71,114 a year, against $72,875 across Michigan.

What ZIP codes are near 48421?

The closest are 48464 (4 mi), 48463 (6.4 mi), 48435 (6.4 mi), 48446 (7.5 mi) and 48461 (9.8 mi).

Is 48421 a PO Box ZIP code?

48421 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “48421 ZIP Code — Columbiaville, Michigan (Lapeer County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/48421

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/48421.json

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