Photo by M.V. Jantzen CNN.com’s Money Magazine has a new ranking out that lists the top U.S. cities or towns in which to snag a wealthy significant other, and Arlington, Va. is in the #2 spot. With 41.6 percent of Arlington’s population listed as single and a median family income of $108,815, the Northern Virginia county is second only to Hermosa Beach, CA, where the median income is $137,941 and 47.2 percent of the…