48178
ZIP 48178 is South Lyon, Michigan, mostly in Oakland County; area codes 248 and 947; Eastern time.
- Type
- Standard
- Time zone
- America/Detroit
- County
- Oakland +2 more
- Metro area
- Detroit-Warren-Dearborn, MI
- Population
- 37,789
- Coordinates
- 42.4438, -83.6569
Weather right now
Asking the National Weather Service…
Where 48178 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.
- 🔢 Type 48178 into a pocket calculator and turn it upside down: BLIBh — not quite a word, sorry.
- ➕ As a number, 48,178 = 2 × 13 × 17 × 109. Its digits add up to 28, a total 1,520 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1011110000110010 - 🏠 Its numerical neighbours: 48177 (Samaria, MI, 44 mi away) and 48179 (South Rockwood, MI, 35 mi away).
- 🔄 Backwards, 48178 becomes 87184 — and that is a real ZIP code: Albuquerque, NM, 1,336 miles away.
- 👥 19 other ZIP codes are made of exactly the same digits (14788, 14878, 14887, 17884, 18847, 47881, …). The farthest-flung twin is 84781 in Pine Valley, UT, 1,609 miles away.
- 🧭 Farther north than 79% of all ZIP codes, and farther east than 61%.
- 🎯796 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 48178 and you would come out at 42.44°S, 96.34°E — 1,291 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 15h 18m of daylight. Shortest: 9h 04m.
- 📏 At 48.0 square miles of land, 48178 is bigger than 58% of ZIP codes — room for about 36 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 37,789This ZIP37,789 |
|---|---|
| Households | 13,953This ZIP13,953 |
| Housing units | 14,397This ZIP14,397 |
| Median age | 42.9This ZIP42.9Michigan40.2US 38.9 |
| Median household income | $131,558This ZIP$131,558Michigan$72,875US $80,734 |
| Median home value | $410,500This ZIP$410,500Michigan$231,600US $332,700 |
| Median gross rent | $1,336This ZIP$1,336Michigan$1,129US $1,413 |
| Bachelor's degree or higher | 54.4%This ZIP54.4% |
| Mean commute | 31.5 minThis ZIP31.5 min |
| Population density | 787.9 / sq miThis ZIP787.9 / sq mi |
Business and tax activity
| Business establishments | 632This ZIP632 |
|---|---|
| Employees | 4,611This ZIP4,611 |
| Annual payroll | $211,378,000This ZIP$211,378,000 |
| Tax returns filed | 18,890This ZIP18,890 |
| Total adjusted gross income | $2,350,625,000This ZIP$2,350,625,000 |
Land area
| Land area | 47.96 sq miThis ZIP47.96 sq mi |
|---|---|
| Water area | 1.74 sq miThis ZIP1.74 sq mi |
Counties 48178 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Oakland County | 36.4% |
| Washtenaw County | 34.2% |
| Livingston County | 29.3% |
Other place names in 48178
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 48178
| ZIP | City | Distance |
|---|---|---|
48165 | New Hudson, MI | 4.2 mi |
48175 | Salem, MI | 4.8 mi |
48168 | Northville, MI | 6.5 mi |
48167 | Northville, MI | 6.8 mi |
48189 | Whitmore Lake, MI | 6.8 mi |
48374 | Novi, MI | 7.3 mi |
48116 | Brighton, MI | 7.7 mi |
48139 | Hamburg, MI | 7.7 mi |
48393 | Wixom, MI | 7.8 mi |
48170 | Plymouth, MI | 8.2 mi |
Find every ZIP code within 10 miles of 48178 →
Questions about this ZIP code
Where is ZIP code 48178?
48178 is in South Lyon, Michigan, in Oakland County, part of the Detroit-Warren-Dearborn, MI metropolitan area. Its published point location is 42.4438, -83.6569.
What county is 48178 in?
48178 spans 3 counties: Oakland County, Washtenaw County and Livingston County. Most of it falls in Oakland 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 48178?
South Lyon uses area codes 248 and 947, from NANPA's telephone records.
What time zone is 48178 in?
48178 uses America/Detroit.
How many people live in 48178?
About 37,789 people live in ZIP code 48178, in 13,953 households, at 787.9 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 48178?
$131,558 a year, against $72,875 across Michigan.
What ZIP codes are near 48178?
The closest are 48165 (4.2 mi), 48175 (4.8 mi), 48168 (6.5 mi), 48167 (6.8 mi) and 48189 (6.8 mi).
Is 48178 a PO Box ZIP code?
48178 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “48178 ZIP Code — South Lyon, Michigan (Oakland County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/48178
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/48178.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.