What is the population of South Lyon city?

South Lyon city has 11,825 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #89 of 745 in Michigan.

What is the median household income in South Lyon city?

Median household income in South Lyon city is $83,822 a year, 6.7% above the national figure of $78,538.

How much does it cost to rent or buy in South Lyon city?

Median gross rent is $1,208 a month and the median home value is $280,900, so rent absorbs about 17.3% of median household income.

Is South Lyon city affordable compared with the rest of the US?

Homes cost about 3.4× the local median income here versus roughly 3.9× nationally, so South Lyon city is more affordable to buy in than the typical US market, and rent takes 17.3% of median income against the 30% cost-burden line.

Aerial view of a dense city center, illustrating the US cities ZIP code directory

Michigan · Census place 75100

South Lyon, MI population, income and ZIP codes

Quick answer

The population of the city of South Lyon, Michigan (South Lyon, MI — Census place “South Lyon city”) is 11,825 residents, ranking #89 of 745 places in Michigan. Median household income is $83,822, the median home is worth $280,900 and median gross rent runs $1,208 a month. Looking for the South Lyon Michigan ZIP code list? 1 ZIP codes serve South Lyon, MI: 48178.

Population: 11,825South Lyon city residents
Median household income: $83,822Past 12 months, inflation adjusted
Median home value: $280,900Owner-occupied units
Median gross rent: $1,208Rent plus utilities, monthly
Median age: 41.8 yrsAll residents
Homeownership rate: 79.6%Owner-occupied households

South Lyon ZIP codes (Michigan)

Census ZCTAs whose delivery area overlaps South Lyon.

The South Lyon MI ZIP code list below covers 1 ZIP code. Open any one for its population, income, housing and rent profile.

48178

What the numbers mean in South Lyon city

Housing cost measured against local earnings.

A household earning the South Lyon city median would spend about 17.3% of gross income on the median rent. The 30% mark is the federal threshold for cost burden, so anything above it signals a stretched rental market. The median home costs 3.4× the median household income; nationally that ratio sits near 4.5×. Poverty affects 4.8% of residents and 79.6% of households own their home.

Source: US Census Bureau, ACS 2019-2023 5-year estimates · rates as published for 2019-2023 ACS 5-year

South Lyon city, MI in context

How this area compares with national benchmarks.

South Lyon city is a mid-size town in Michigan, with 11,825 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #89 of 745 ranked by population — larger than 88% of them. The median age here is 41.8 years against 39.1 nationally, a slightly older profile than the country as a whole. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.

Households in South Lyon city earn a median of $83,822 a year, 6.7% above the national figure of $78,538 and 36% above the $61,715 median for the 438 Michigan cities we cover. The median is the midpoint household, not an average, so a handful of very high earners cannot drag it upward the way they distort a mean. Poverty reaches 4.8% of residents here, less than half the 12.4% national rate.

The typical owner-occupied home in South Lyon city is valued at $280,900, 7.4% below the national figure and 69% above the $166,100 peer median, while median gross rent runs $1,208 a month, 14.1% below the national figure, or roughly $14,496 across a full year. A household on the local median income would put about 17.3% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 3.4×, against roughly 3.9× nationally, so buying is easier here than in the average US market. 79.6% of occupied homes are owner-occupied versus 65% nationally, so the market leans toward owners. Rent is reported gross — contract rent plus tenant-paid utilities — which is why it runs above the advertised price on a listing for the same unit.

Every value on this page is published directly by the Census for this area — nothing is modelled or interpolated. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.

Compare with nearby places

Places of similar size in Michigan.

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Frequently asked questions

Common questions about this area.

What is the population of South Lyon city?: South Lyon city has 11,825 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #89 of 745 in Michigan.
What is the median household income in South Lyon city?: Median household income in South Lyon city is $83,822 a year, 6.7% above the national figure of $78,538.
How much does it cost to rent or buy in South Lyon city?: Median gross rent is $1,208 a month and the median home value is $280,900, so rent absorbs about 17.3% of median household income.
Is South Lyon city affordable compared with the rest of the US?: Homes cost about 3.4× the local median income here versus roughly 3.9× nationally, so South Lyon city is more affordable to buy in than the typical US market, and rent takes 17.3% of median income against the 30% cost-burden line.
How current is this South Lyon city data?: All figures come from the US Census Bureau American Community Survey 2019-2023 ACS 5-year five-year estimates. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.