Where is it legal to own a fox in the US?

A fox you can own any where! BUT they don't come cheap.(licence)

You can only get this type licence when and if you pass this and more.

A-The Pet Animals act 1951

B-The Animals boarding Establishments Act 1963

C-The Protection of Animals (Amendment) Act1954

D-The Protection of Animals (Cruelty to Dogs)(Scotland)Act 1934

You also have to pay for application up front of 150;00 There are several other impotent things you have to pass before the inspector can or will issue this type licence.