South Williamson, Kentucky has an MBR Housing Affordability Index score of 149.6 (Highly Affordable) as of October 30, 2026, ranking 121st most affordable of 431 scored Kentucky cities, compared with 120.8 statewide and 97.4 nationally. On a median-priced $169,800 home with 20% down, the Kentucky average 30-year fixed rate of 7.27% means a monthly principal and interest payment of about $928, or 20% of the city’s $56,484 median household income.
The MBR Housing Affordability Index (MBR-HAI) for South Williamson is updated every night from live Kentucky 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 Williamson is 28.8 points above the Kentucky score. Scores as of October 30, 2026. See the Kentucky index
View South Williamson Mortgage RatesSource: U.S. Census Bureau American Community Survey 5-Year Estimates (2024) for South Williamson, Kentucky. The rate is the Kentucky 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.