Doesn't really matter. The Prometric site reports the scores to the school and the school could care less where you took it (at least from my experience). I'll tell you my situation.
I have lived in Mississippi all of my life, and my wife is from Phoenix. She's stayed here for my last two years of college. She didn't move because she has family issues tying her down here. So, when I graduated last May...I left MS and came here to AZ. I studied for my DAT and took it in Goodyear, AZ. During the meanwhile, I received an interview from Loma Linda in California. We went to it and I was accepted there on Dec. 3rd.
I decided to go back to MS over the holidays, in hopes that Mississippi would give me an interview. They did (thank God) and I was already in town to attend it. It's not really like I'm "living" here because I'm not working right now. If you work out of state, there may be issues when you try to claim residency in a state, since it will be in your taxes when you file for student aid.
There shouldn't be any problems, but I almost didn't get an interview at UMC (MS) because my stepfather (a police officer...go figure) accidentally told a contact at the dental school I was "staying in AZ." So, that someone went back to the adcom and told them I wasn't in MS. I had to email the dental school professor and tell him my stepfather was wrong, I was not "LIVING" in Arizona. It was a lot like your issue. So, if they ask you directly if you've been out of town...don't lie. But, don't advertise the fact that you're hanging out with family in Iowa...you'll never get the interview. They have to do this because the schools are so cheap and people would love to get out of school owing only 175k versus owing ~350k somewhere else. The southern public schools want you to stay there to practice...so that's something else to know at the interview. I had 3 interviewers and they all asked me, "Where do you plan to practice after school?" Always say the state the school is in, and preferably in an "underrepresented" area of the state. There are lots of benefits that come from practicing in these areas, lots of incentives will pay off a lot of your debt.
As long as you're not working in Iowa...you can technically claim residency in Georgia. Hope this helps and good luck.
