I’m a licensed agent with MLS access. 25% of the three Vista ZIPs are listed as vacant. I don’t know how to search numbers greater than 250 at a time on the MLS yet. 33% seems pretty high to me. Then again, one would assume even at a 25% vacancy percentage that those 25% would be the most motivated and would price their homes to sell next. If I had county-wide access, I’d look at average list price of the vacants compared to the non-vacants. If I were a buyer’s agent, I’d only show my client vacants and put in low offers.