....and, this is completely Self Service.
Go to Profile, select Membership and voila, your address details to check and correct. Do it now, it's easy!
And do note, that if you need to correct your state, you need to first reselect your country in order to load the correct list of states. If you are from the US, you are otherwise very likely to end up in Alaska. So check what you entered after you pressed "Save".