U.S. States: Alabama, Arizona, California, Colorado, Connecticut, Delaware, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, Tennessee, Texas, Utah, Vermont, Virginia, Washington, Wisconsin
other U.S.: District of Columbia, U.S. Government
Canada: Manitoba, Nova Scotia, Ontario, Quebec
U.S. States Lost from May: Arkansas, Louisiana, Wyoming
U.S. States Gained from May: Delaware, Nebraska, Nevada, New Mexico, Tennessee
U.S. States not seen yet at all: I still haven't seen Hawaii and Mississippi since I started doing this in October.