Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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 — CITY/MI/SOUTH-LYON

South Lyon ZIP code, Michigan

The ZIP code for South Lyon, MI is 48178, and its area codes are 248 and 947.

USPS city name
1 ZIP code
Population
11,950
Area codes
248, 947

South Lyon in numbers

About 11,950 people live in South Lyon, in 4,976 households. The median household income is $92,467 a year, 27% above the Michigan median of $72,875 (US: $80,734). The median owner-occupied home is valued at $294,600 (27% above the Michigan median), and median gross rent is $1,310 a month. The median age is 41.8; 47.2% of adults 25 and over hold a bachelor's degree or higher (32.4% across Michigan); the average commute takes 32 minutes.

Population11,950South Lyon11,950
Households4,976South Lyon4,976
Median age41.8South Lyon41.8Michigan40.2US 38.9
Median household income$92,467South Lyon$92,467Michigan$72,875US $80,734
Median home value$294,600South Lyon$294,600Michigan$231,600US $332,700
Median gross rent$1,310South Lyon$1,310Michigan$1,129US $1,413
Bachelor's degree or higher47.2%South Lyon47.2%Michigan32.4%US 35.7%
Mean commute31.7 minSouth Lyon31.7 minMichigan24.2 minUS 26.4 min
Population density3,194 / sq miSouth Lyon3,194 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place South Lyon city. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as South Lyon

ZIP codes with the USPS city name South Lyon
ZIP City Type Population Median income Median home
48178 South Lyon , MI Standard 37,789 $131,558 $410,500

Map of South Lyon ZIP codes

48178

The ZIP codes of South Lyon, MI, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near South Lyon

The nearest larger towns are Wixom (17,295 people, 7.6 mi), Novi (66,717 people, 8.6 mi) and Ann Arbor (122,036 people, 13 mi).

Towns near South Lyon
TownPopulationDistance
Whitmore Lake 7,878 5.8 mi
Wixom 17,295 7.6 mi
Brighton 7,688 8.2 mi
Novi 66,717 8.6 mi
Northville 6,069 8.6 mi
Milford 6,487 9.2 mi
Walled Lake 7,299 10.5 mi
Wolverine Lake 4,487 10.6 mi
Plymouth 9,214 11.3 mi
Ann Arbor 122,036 13.4 mi
Farmington 11,504 14.0 mi
Farmington Hills 83,515 14.2 mi
Dexter 4,521 14.6 mi
Livonia 93,851 15.0 mi

More nearby: every ZIP code in Oakland County · Michigan ZIP codes

Cite this page

zipcodes.pro. “South Lyon, MI ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/mi/south-lyon

Underlying data is public domain or openly licensed — sources, vintages and licences.