South Lyon, Michigan has an MBR Housing Affordability Index score of 107.8 (Near National Average) as of October 30, 2026, ranking 487th most affordable of 629 scored Michigan cities, compared with 108.6 statewide and 97.4 nationally. On a median-priced $294,600 home with 20% down, the Michigan average 30-year fixed rate of 7.31% means a monthly principal and interest payment of about $1,617, or 21% of the city’s $92,467 median household income.
The MBR Housing Affordability Index (MBR-HAI) for South Lyon is updated every night from live Michigan mortgage rates and U.S. Census Bureau income, home value and housing cost data for the city. A score of 100 equals the national average; higher scores mean homeownership is more affordable.
South Lyon is 0.9 points below the Michigan score. Scores as of October 30, 2026. See the Michigan index
View South Lyon Mortgage RatesSource: U.S. Census Bureau American Community Survey 5-Year Estimates (2024) for South Lyon, Michigan. The rate is the Michigan average 30-year fixed rate from MonitorBankRates, since lenders publish rates by state.
Scores update each morning, computed from rate data captured the previous night. Score of 100 = national average at a 6.5% reference rate.