No. The 5th Circuit has not ruled on whether individual states can ban same-sex marriage, although there is a case pending before it concerning Texas' ban.
No. The 3d Circuit has not ruled on whether individual states can ban same-sex marriage.
No, the 11th Circuit has not ruled on whether individual states can ban same-sex marriage.
Yes. In October 2014, the 9th Circuit Court of Appeals ruled that Nevada's law banning same-sex marriage was unconstitutional.
No, and it is not likely to in the future, since there are no bans on same-sex marriage within its jurisdiction.
No, and there is not likely to be such a ruling, since there are no bans on same-sex marriage in any part of the 2d Circuit's jurisdiction: CT, NY and VT.
no
No, the 3d Circuit has not ruled on it.
No, the 4th Circuit has not ruled on it.
No, the 6th Circuit has not ruled on it.
No, the 10th Circuit has not ruled on it.
No, the 11th Circuit has not ruled on it.
No. No such ruling has been given yet. If there were to be a ruling on this issue in the 1st Circuit, it would have to be in a case from Puerto Rico, which is the only part of its jurisdiction that currently bans same-sex marriage.