If you are investment real estate buyer looking for potential rental properties, Rockford and Winnebago County in Illinois are on RealtyTrac’s list of the 20 best U.S. markets when it comes to rental returns. Based on RealtyTrac’s formula, Rockford-area rental properties average an 18 percent annual gross yield. Read more and see a heat map from RealtyTrac.

Source: RealtyTrac