One of the hottest housing markets in America is in Illinois. Realtor.com released its 2026 list of the Hottest ZIP Codes, and Wheaton is the only Illinois city in the top 10, ranking 10th. Right now, the hottest market in America is on the East Coast in Peabody, Massachusetts. Anderson Japanese Gardens Designed This Rockford Home's Front YardRob Carroll, Townsquare Media Rockford skyline at sunsetRockford Housing Market Cools Slightly to 25th in 2026Rockford was named the hottest housing market in 2025 but appears to have fallen off a bit in 2026, ranking 25th overall. Check out all 50 of the hottest realty zip codes in America here.