the 3rd largest state in the Union) going into effect on Monday January 5. That is very close to two-thirds of the population living in jurisdictions with marriage equality.
The U.S. Supreme Court is considering appeals from the states in the 6th Circuit within the next week or so and if they grant certiorari then we could have a final national determination by July 2015.
The graphic above shows the polling data on support for marriage equality (i.e. same-sex marriage) for the last three decades. It's a pretty picture!
Hat/tip to Daily Kos