Wilmington, Illinois has an MBR Housing Affordability Index score of 428.5 (Highly Affordable) as of October 30, 2026, ranking 8th most affordable of 1,249 scored Illinois cities, compared with 102.2 statewide and 97.4 nationally. On a median-priced $34,500 home with 20% down, the Illinois average 30-year fixed rate of 7.31% means a monthly principal and interest payment of about $189, or 3% of the city’s $74,167 median household income.
The MBR Housing Affordability Index (MBR-HAI) for Wilmington is updated every night from live Illinois 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.
Wilmington is 326.3 points above the Illinois score. Scores as of October 30, 2026. See the Illinois index
View Wilmington Mortgage RatesSource: U.S. Census Bureau American Community Survey 5-Year Estimates (2024) for Wilmington, Illinois. The rate is the Illinois 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.