While Tysons Corner does not have it’s own postal address the U.S. Postal Service has approved Tysons Corner or Tysons as an official address that can be used with zip codes 22102 and 22182 (you may recognize those addresses as being for McLean and Vienna.)
So, when mailing you can use:
Tysons Corner, VA 22102 or McLean, VA 22102
Tysons Corner, VA 22182 or Vienna, VA 22182
Tysons Corner has yet to be approved for its own dedicated zip code but will likely qualify for one in the future based on projected growth. Regardless, those living in area will finally have the option to associate their home with Tysons Corner as opposed to having to use Vienna or McLean if they like.