Moving from NJ to Tulsa OK, is it racially diverse area?

My Husband and I live in a NJ which we love, but his company has offered him a great position in Tulsa which he wants to pursue, what should we expect? we love the diversity of the East coast, and will miss that will we fit in? (We are African American) I do not know much about Oklahoma except the Wizard of OZ? Just a joke help me please someone ? Info on house buying, ect.. would be helpful