50 United States

For non-United States I've done:

Mexico
Japan
Korea
Guam
Philippines
Greenland
Thailand
Germany
France
Belgium
Austria
Liechtenstein
Switzerland
The Netherlands
Okinawa
Canada
Hong Kong

 

26 here, including Hawaii. Not too bad for someone who doesn't even live in the States My wife and I got married in Las Vegas btw.

Other than that I've been to:

Mexico
Colombia
Puerto Rico
Belize
Honduras
Bahamas
Turks & Caicos
St. Maarten
Netherlands
Belgium
France
Spain
Portugal (and Madeira)
Switzerland
Austria
Italy
Croatia
Romania
Poland
Denmark
Luxemburg
San Marino
Greece
Malta
Egypt
Morocco

Next year we will add Chile, Peru, Nicaragua and Costa Rica to the list

 

Forgot Switzerland. Have driven the length and stopped in a few towns.

 

+1 on Costa Rica. I would move there if possible.

 

And I forgot England and Ireland Actually we'll be on a plane to London tomorrow for a spontaneous 3-day city trip.

A friend of mine went there 2 years ago and he was very excited about the country. I really look forward to visiting it.

 

I've done all 50 and most of the overseas territories.

 

While we are on the topic of travel, is anyone else a member of Traveler's Century Club?