Brianna, I think we've had chapters in a lot of the states you've mentioned, but are now closed. Utah comes to mind.
One really good recruitment tool is to get a map of the United States, mounted (or you mount it!) on foam Display Board. Using blue & white push pins, mark everyplace where there's a chapter with one color, and everywhere there's an alumnae group with the other. You'll be so surprised, you'll impress yourselves!