The Washington Post recently made the interesting observation that there are only 5 states in the U.S. (now, four, given Lambda Legal's lawsuit announced today in Georgia) where statewide bans on same-sex marriage have gone unchallenged:
Gay marriage is now legal in 17 states and bans are being challenged in 30, according to the latest count from Lambda Legal, a pro-gay marriage organization. (Hawaii and Illinois allow gay marriage, but legal technicalities to aspects of their laws are still being ironed out in the courts.)
The five states with bans on gay marriage that stand unchallenged are: Alaska, Georgia, Montana, North Dakota and South Dakota.
The Post notes that the five states' marriage bans may not last for long as one South Dakota couple already has plans to challenge their state's ban.