Fourth-most-dangerous U.S. city to move to: West Memphis, Ark. Located across the Mississippi River from Memphis, West Memphis suffers from violent-crime rate more than six times the U.S. average. That includes a rape rate 5.3 times the national average, as well as a level of murders three times higher than you'd expect given the city's 26,000 population. West Memphis also suffers from an aggravated-assault rate 7.3 times higher than average, as well as 3.9 times the typical number of robberies on a per-capita basis. Add the fact that West Memphis has more than three times the average rate of property crimes and you've got about a 1-in-8 chance of becoming a victim there in any given year. Schiller attributes some of West Memphis' problems to a spillover of crime from Memphis itself, which NeighborhoodScout ranks as America's 22nd-most-dangerous city.