Among Illinois’ most populous urban centers, Chicago-Naperville-Elgin posted the highest percentage of properties with mortgages that have at least 50 percent equity in their homes, according to an analysis by ATTOM Data Solutions looking at home equity.

In Illinois, owners of 387,854 properties with mortgages owe at least 25 percent more on their loans than their property is worth, according to an analysis by ATTOM Data Solutions looking at home equity at the end of the first quarter.