With Hawaii and Illinois, U.S. crosses a same-sex marriage mark

Updated 7:03 PM EST, Wed November 13, 2013

Story highlights

More than 1 in 3 Americans live where same-sex marriage is or will be legal

Hawaii and Illinois are the latest with Hawaii's law taking effect next month

16 states and D.C. have legal same-sex marriage; others ban it, except New Mexico

Public support for it has doubled since 1996 to 53% of Americans

(CNN) —  

As Hawaii and Illinois join the list of states approving same-sex marriage, the United States crosses a big mark on the issue: More than 1 in 3 Americans will live where same-sex marriage is legal.

It’s a dramatic shift in a short period of time – one not seen on other social issues.