Fourth best: Charleston, S.C. Finding a guy to dance the Charleston with in Charleston should be pretty easy. Single people who've lived in Charleston for less than five years make up 28.6% of the city's 665,000 population, a 99th-percentile showing, and single men under 35 account for 19.3% of Charleston residents -- another 99th-percentile ranking. That said, Charleston places only in the 49th percentile for its walk score and in the 34th percentile for disposable income among single males. Unmarried Charleston men make a median $31,036 annually, yet typically pay $1,435 a month in rent. That gives them a relatively low $1,151 in extra funds per month to spend on dates and the like. The city has 156 young unmarried men for every 100 young unmarried women. That puts Charleston in the 96th percentile nationwide for the ratio of eligible young males to eligible young females.