If I got married in California and we bought a house in Arizona would the house be community property?

It doesn't matter where you bought the property. By virtue of you being a resident of CA while married, all assets acquired during marriage are community property.

If unmarried and your name is on the deed, still half yours.

Having two names on a deed comes in several flavors: tenants in common, joint tenants with right of survivorship, or tenants by the entirety (i.e., you are married and title is to the married union).

Dividing community property, wherever it happens to be located, is determined by the court having jurisdiction over the divorce. For instance, a Boston court would divide up the couple's property that could include a condo in Florida, a time-share in Switzerland as well as the local properties. The court would "order" the parties to sign the necessary documents to clarify title in each foreign property, and to cooperate with other required formalities of each jurisdiction.

If you are not married it does not matter that Arizona is a community property state. It depends on how it is written up. Check the deed and see what it says.

Yes, if married before you buy the house it is half yours in both states. If you are unmarried your name would have to be on the title to have any claim.

50/50...