Here are my guesses:
Most libertarian: New Hampshire
Least libertarian: Mississippi
Most Free Market: Texas, Nevada, Wyoming, South Dakota, Florida, Delaware
Least Free Market: California, New York
Obviously there is no complete free market in any state, nor complete libertarianism, but some states lean more towards these ideas than not. What do you think? Nix some? Add some? Anyone know of any specific communities that match these?