New York, New Jersey, California, Florida, Hawaii (Maui and Oahu) 1985 [graduation present], Pennsylvania, Massachusettes, Rhode Island, Connecticut, Maine, New Hampshire, Vermont, Ohio, Wisconsin, Kansas, New Mexico, Utah, Colorado, South Dakota, Tennesee, Kentucky, Montana, Wyoming, Idaho, Arkansas, Virginia, Washington D.C., Nevada, Texas, Missouri, Indiana, Illinois, Maryland
That's 32 states by my count...
In the summer of 1978, my family attempted a cross country run in an RV. We lasted a week and turned around and went back home.
In the summer of 1982, I drove from California to New Jersey and back to California again, so many of these states I simply drove through.
Several - especially on the east coast - I've visited many times.