We've heard the presidential candidates talk about investing in education. One very literal way to do that: Buy real estate in college towns. Since "the towns generally have a lot of students who will live off campus, there's built-in rental demand," says Zillow Chief Economist . And, says the National Association of Realtors' Chief Economist Lawrence Yun, "with prices and mortgage rates attractive, for people with a horizon of five years and longer it looks like a situation with great steady demand." To get the lay of the land, we used data gathered by real estate information web site Zillow on towns ranging from to, as well as looking at enrollment and other trends. Methodology details are on the last slide.