First 9 States to Ratify the Constitution By zkaye97 Dec 7, 1787 Delaware Delaware Period: Dec 7, 1787 to Jun 12, 1788 First 9 States to ratify the constitution Dec 12, 1787 Pennsylvania December 12th 1787 Dec 18, 1787 New Jersey Jan 2, 1788 Georgia 2 January 1788 Jan 9, 1788 Connecticut Feb 6, 1788 Massachusetts Apr 28, 1788 Maryland May 23, 1788 South Carolina Jun 21, 1788 New Hampshire
