 New data showing the number of same-sex marriages in Maryland continues to rise. The U.S. Census Bureau estimates there were 4,400 same-sex married couples in Maryland in 2012, the year before the state legalized it. That number had already grown to over 10,000 when the U.S. Supreme Court issued its historic ruling making same-sex marriages legal nationwide. Maryland Matters reports that there are now over 16,000 same-sex couples in the state. That makes up about 70% of all same-sex couples in Maryland.