City in Oakland County, Michigan · 3.7 sq mi · 3,260 people per sq mi
About 12,000 people live in South Lyon. The typical household earns $92,467, and the median resident is 41.8 years old.
2026 projection
From 11,727 in 2020
Poverty rate 3.99%
Men 40.3 · Women 44.1
1880–2026
12,195
2026 projection
4% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
1880–2026
12,195
2026 projection
4% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 12,195 | +88 | 0.73% |
|---|---|---|---|
| 2025 | 12,107 | +25 | 0.21% |
| 2024 | 12,082 | +109 | 0.91% |
| 2023 | 11,973 | +96 | 0.81% |
| 2022 | 11,877 | +14 | 0.12% |
| 2021 | 11,863 | +136 | 1.16% |
| 2020 | 11,727 | -94 | 0.80% |
| 2019 | 11,821 | -2 | 0.02% |
| 2018 | 11,823 | +12 | 0.10% |
| 2017 | 11,811 | +31 | 0.26% |
Showing 10 of 30 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 120 people).
Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002
Half of households earn more, half earn less
Typical yearly pay for a worker 25 or older.
About 1 in 25 residents
53% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 53% | 56% | 50% |
| Never married | 29% | 31% | 27% |
| Divorced | 12% | 12% | 12% |
| Widowed | 6% | 2% | 10% |
| Separated | <1% | <1% | <1% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau