Zip Code 48178
South Lyon, Michigan — Oakland County
📍 ZIP code 48178 is in South Lyon, Oakland County, Michigan.
ZIP code 48178 is located in South Lyon, Oakland County, Michigan. It is a zip code in the Eastern (EST/EDT) Time Zone with an estimated population of 37,303. The area code for ZIP code 48178 is 248.
Quick Answer
Zip code 48178 is in South Lyon, Michigan (Oakland County). It has a population of 37,303, median household income of $130,781, and median home value of $392,300.
Population
37,303
Income
$130,781
Home Value
$392,300
Climate
82°F / 15°F
About Zip Code 48178
Zip code 48178 is located in South Lyon, Michigan, within Oakland County. Home to approximately 37,303 residents, this area sits at an elevation of 915 ft and falls within the Eastern (EST/EDT) timezone. The local area code is 248.
The median household income is $130,781 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $392,300, and the cost of living index is 146 (46% above the national average of 100).
Summers average a high of 82°F while winters drop to 15°F. The area receives about 34 in of rain and 18 in of snow annually. The zip code covers 50.6 square miles of land area and 2 square miles of water.
Key Statistics
37,303
$130,781
$392,300
Eastern (EST/EDT)
248
915 ft
50.6 sq mi
42.4
14,402
Advertisement
Compare With Nearby Zip Codes
| Metric | 48178 | 48165 | 48189 | 48167 | 48374 | 48116 |
|---|---|---|---|---|---|---|
| City | South Lyon, MI | New Hudson, MI | Pinckney, MI | Northville, MI | Walled Lake, MI | Brighton, MI |
| Population | 37,303 | 9,141 | 13,748 | 23,281 | 17,828 | 27,817 |
| Median Income | $130,781 | $105,511 | $82,433 | $118,378 | $185,203 | $109,606 |
| Home Value | $392,300 | $352,300 | $286,200 | $430,500 | $551,500 | $355,800 |
| Cost of Living | 146 | 128 | 100 | 145 | 211 | 125 |
| Median Age | 42.4 | 37.4 | 42.5 | 45.1 | 39.2 | 45.8 |
Cost of Living
100 = National Average. South Lyon's cost of living is 46% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
3.0x
Demographics
Zip code 48178 has a population of 37,303 people with a median age of 42.4. There are 14,402 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
South Lyon (48178) population trend from 2010 to 2024
↓ -21.9%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
82°F
15°F
34 in
18 in
South Lyon experiences warm summers with average highs around 82°F. Winters are cold with lows averaging 15°F. The area receives about 18 in of snow per year.
Advertisement
Housing & Economy
Median Home Value
$392,300
Median Household Income
$130,781
With 14,402 housing units across 50.6 square miles, 48178 has a housing density of 285 units per square mile. The home price-to-income ratio is 3.0x.
Location & Geography
Latitude
42.4438°
Longitude
-83.6569°
Land Area
50.6 sq mi
Water Area
2 sq mi
Nearby Zip Codes
Zip codes closest to 48178 (South Lyon, MI) with distances:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 48178's $130,781. A way to compare South Lyon to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 48178 (South Lyon, MI). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
Explore Michigan
Popular "Near Me" Searches
Advertisement
People Also Ask
What zip code is South Lyon, Michigan?
South Lyon, Michigan uses zip code 48178.
What county is zip code 48178 in?
Zip code 48178 is located in Oakland County, Michigan.
What is the population of zip code 48178?
The population of zip code 48178 is 37,303 with a median age of 42.4.
Is 48178 in South Lyon, Michigan?
Yes, zip code 48178 is in South Lyon, Oakland County, Michigan. The area code is 248.
Frequently Asked Questions
What city is zip code 48178 in?
Zip code 48178 is in South Lyon, Michigan. It is part of Oakland County and uses the Eastern (EST/EDT) timezone.
What is zip code 48178?
Zip code 48178 is a U.S. postal code in South Lyon, Michigan (Oakland County). It has a population of 37,303 and covers 50.6 square miles.
What is the population of zip code 48178?
The population of zip code 48178 (South Lyon, MI) is 37,303 with a median age of 42.4. There are approximately 14,402 housing units in this area.
What is the median income in zip code 48178?
The median household income in zip code 48178 (South Lyon, MI) is $130,781 per year. The cost of living index is 146 (100 = national average).
What is the average home price in zip code 48178?
The median home value in zip code 48178 (South Lyon, MI) is $392,300. The cost of living index is 146 compared to the national average of 100.
What county is zip code 48178 in?
Zip code 48178 is located in Oakland County, Michigan. The primary city is South Lyon.
What is the area code for zip code 48178?
Zip code 48178 in South Lyon, MI uses area code 248. It is located in the Eastern (EST/EDT) timezone.
Is zip code 48178 a good place to live?
Zip code 48178 (South Lyon, MI) has a cost of living index of 146 (100 = national average), a median household income of $130,781, and median home values of $392,300. The median age is 42.4. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 48178?
The cost of living index for zip code 48178 (South Lyon, MI) is 146, where 100 represents the national average. This area is above the national average. Median home value: $392,300.
What schools serve zip code 48178?
Zip code 48178 in South Lyon, Michigan is served by the local school district of Oakland County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
People Also Searched For
Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.