South Lyon, Michigan Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of South Lyon, Michigan is 11,825 as of the 2023 American Community Survey, making it the 89th-largest city in Michigan. The median household income is $83,822, the median home value is $280,900, and the median age is 41.8.
The population has grown 7.9% since 2010 (11,327 → 12,219).
11,825
Population
3161
People / sq mi
$83,822
Median Income
$280,900
Median Home Value
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South Lyon covers 3.7 sq mi of land at 3161 people per square mile.
About South Lyon, MI
The poverty rate is what most separates South Lyon from the typical city: 1.7% of residents live below the federal poverty line, against 12.4% nationally. South Lyon is a city in Michigan with a population of 11,825.
Median household income is $83,822, above the US median of $78,538. Poverty is among the lowest of comparable US cities, at 1.7% — below the national 12.4%. Homes carry a median value of $280,900, with typical rent around $1,208.
Educational attainment is on the higher side for US cities — 45.0% of adults hold a four-year degree, above the national 35.0%. Remote work is below the national 14.0% at 11.1%, and the average commute runs about 31 minutes each way.
South Lyon city Population History (2010-2024)
The city of South Lyon city had a population of 11,327 in 2010 and 12,219 in 2024, a 7.9% growth over 14 years. The peak was 12,219 in 2024. Average annual growth rate: 0.54%.
12,219
Population (2024)
11,327
Population (2010)
12,219
Peak (2024)
0.54%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 11,327 |
| 2011 | 11,423 |
| 2012 | 11,560 |
| 2013 | 11,710 |
| 2014 | 11,751 |
| 2015 | 11,747 |
| 2016 | 11,775 |
| 2017 | 11,809 |
| 2018 | 11,817 |
| 2019 | 11,821 |
| 2020 | 11,726 |
| 2021 | 11,859 |
| 2022 | 11,900 |
| 2023 | 12,040 |
| 2024 | 12,219 |
Race & Ethnicity
| White | 91.5% |
| Black or African American | 1.5% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.1% |
| Two or More Races | 0.0% |
Economy & Income
$83,822
Median Household Income
$50,353
Per Capita Income
1.7%
Poverty Rate
2.6%
Unemployment Rate
Housing
$280,900
Median Home Value
$1,208
Median Rent
79.6%
Owner-Occupied
Education
97.4%
High School+
45.0%
Bachelor's+
Commute
0.2%
Drive Alone
82.1%
Public Transit
11.1%
Work From Home
30.7 min
Avg Commute
Community Profile
14.5%
Foreign Born
95.2%
Non-English at Home
3.9%
Veterans
9.5%
With Disability
97.3%
Health Insurance
98.9%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 23.3% |
| Manufacturing | 19.8% |
| Finance, Insurance & Real Estate | 10.5% |
| Information | 7.0% |
| Public Administration | 6.5% |
| Education, Health Care & Social Services | 6.1% |
| Arts, Entertainment & Food Services | 4.8% |
| Construction | 4.5% |
| Retail Trade | 2.9% |
| Transportation & Warehousing | 1.0% |
| Agriculture & Mining | 0.4% |
Largest cities in Michigan
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Part of Michigan
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City rankings
Frequently Asked Questions
South Lyon, Michigan has a population of 11,825 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 89th-largest city in Michigan.
The median household income in South Lyon, Michigan is $83,822, with 1.7% of residents living below the federal poverty level.
The median home value in South Lyon, Michigan is $280,900, with median monthly rent at $1,208 and a homeownership rate of 79.6%.
The median age in South Lyon, Michigan is 41.8 years. The population is 48.5% male and 51.5% female.
The population has grown 7.9% since 2010 (11,327 → 12,219).
South Lyon city, MI Climate
South Lyon city, MI has an average annual temperature of 8.6°C (47°F) and receives about 809 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
8.6°C
Avg Temp
809
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -5° / 22° | 44 mm |
| February | -4° / 24° | 44 mm |
| March | 1° / 34° | 62 mm |
| April | 8° / 46° | 78 mm |
| May | 14° / 58° | 72 mm |
| June | 19° / 67° | 86 mm |
| July | 22° / 71° | 72 mm |
| August | 21° / 69° | 84 mm |
| September | 16° / 62° | 80 mm |
| October | 10° / 50° | 57 mm |
| November | 4° / 38° | 67 mm |
| December | -2° / 28° | 63 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit South Lyon city, MI
The most comfortable months to visit South Lyon city, MI are typically July, August and June, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 28°C high). The coldest is January (near -9°C low). June is usually the wettest month.
Where to stay near South Lyon
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.