South Lyon is a city in Oakland County, Michigan, home to about 11,950 people across 3.7 square miles. Its ZIP code is 48178.
Homes sold for a median of $203 per square foot in the three months ending August 2026, a seller’s market.
Mostly South Lyon; also Lyon and Green Oak
Each card is that ZIP code’s whole market, including any part outside South Lyon. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up South Lyon’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Detroit Metropolitan Wayne County Airport (DTW)23 miles away |
|---|---|
| Nearest city of 250,000+ | Detroit, MI29 miles away |
| Nearest city of 1 million+ | Chicago, IL211 miles away |
Straight-line distances from the center of South Lyon; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
South Lyon had 11,746 residents in the 2020 census, up 17% since 2000.
It’s the 168th largest of 1,531 towns in Michigan by population.
Oakland County grew from 44,792 residents in 1900 to 1,274,395 in 2020.
Oakland County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 82°F in summer, and winter lows average 14°F. About 34.5 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Whitmore Lake 1nw, MI weather station (6 miles away).
733,671 jobs at 39,792 businesses in Oakland County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
230 doctors and other health care providers list an office in South Lyon.
Nearest hospitals
Providers with an office here
| Primary care doctors | 31 |
|---|---|
| Specialist doctors | 7 |
| Dentists | 32 |
| Nurse practitioners and physician assistants | 20 |
| Mental health providers | 77 |
| Physical and occupational therapists | 52 |
| Optometrists | 4 |
| Chiropractors | 7 |
| Pharmacies | 10 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (5 nearby)
Grocery stores (1 nearby)
Pharmacies (2 nearby)
Libraries
Museums (1 nearby)
Counts are within about 1.5 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by South Lyon Community Schools. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Frank E Bartlett SchoolSouth Lyon | Pre-K–5 | 483 | Public | 0.5 mi |
| Special EducationSouth Lyon | Pre-K–12 | 1 | Special Education | 0.7 mi |
| Kent Lake Elementary SchoolSouth Lyon | K–5 | 518 | Public | 3.6 mi |
| Sayre Elementary SchoolSouth Lyon | K–5 | 450 | Public | 0.8 mi |
| Sharon J Hardy Elementary SchoolSouth Lyon | K–5 | 570 | Public | 3.9 mi |
| William A Brummer Elementary SchoolSouth Lyon | K–5 | 469 | Public | 1.8 mi |
| William A Pearson ElementarySouth Lyon | K–5 | 576 | Public | 2.4 mi |
| Centennial Middle SchoolSouth Lyon | 6–8 | 898 | Public | 0.7 mi |
| Millennium Middle SchoolSouth Lyon | 6–8 | 1,049 | Public | 0.7 mi |
| South Lyon East High SchoolSouth Lyon | 9–12 | 1,174 | Public | 4.8 mi |
| South Lyon High SchoolSouth Lyon | 9–12 | 1,245 | Public | 1.2 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Lyon, Green Oak, Northfield and Salem Township (Washtenaw County).
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.