South Lyon, MI Profile: Facts, Map & Data


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South Lyon, Michigan - Basic Facts

The City of South Lyon had a population of 12,244 as of July 1, 2017. South Lyon ranks in the upper quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in Michigan. See peer rankings below.

The primary coordinate point for South Lyon is located at latitude 42.461 and longitude -83.6532 in Oakland County. The formal boundaries for the City of South Lyon (see map below) encompass a land area of 3.73 sq. miles and a water area of 0 sq. miles. Oakland County is in the Eastern time zone (GMT -5). The elevation is 925 feet.

The City of South Lyon (GNIS ID: 1627100) has a C5 Census Class Code which indicates an active incorporated place that is independent of any county subdivision and serves as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

Beneath the boundary map are tables with South Lyon population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

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City of South Lyon, MI Boundary Map

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South Lyon, MI Data & Demographics (As of July 1, 2017)


Total Population 12,244
Daytime Population: Workers 3,547
Daytime Population: Residents 6,193
Total Daytime Population (TDP) 9,740
Ratio TDP/Total Population1 0.80
Population in Households 12,170
Population in Familes 9,790
Population in Group Qrtrs 74
Population Density2 3,279
Diversity Index3 18


Median Household Income $61,559
Average Household Income $85,055
Per Capita Income $34,843


Total Housing Units 5,275 (100%)
Owner Occupied HU 3,820 (72.4%)
Renter Occupied HU 1,175 (22.3%)
Vacant Housing Units 280 ( 5.3%)
Median Home Value $178,974
Average Home Value $187,772


Total Households 4,995
Average Household Size 2.44
Family Households 3,089
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 1.08% 0.88%
Households 1.0% 0.84%
Families 0.81% 0.71%
Median Household Income   2.52%
Per Capita Income   2.82%

South Lyon, MI - Peer Comparisons by Rank and Percentile

The table below compares South Lyon to the other 692 incorporated cities, towns and CDPs in Michigan by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 84 88th
Population Density # 60 91st
Diversity Index # 316 55th
Median Household Income # 92 87th
Per Capita Income # 87 88th

Additional comparisons and rankings can be made with a VERY EASY TO USE Michigan Census Data Comparison Tool.

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