The 10 most promiscuous cities in the United States (+Photos)

7. Tempe, AZ

We hunted around for promiscuous cities and finally fell on Tempe, Arizona for seventh place. The city is small (39.62 square miles) and has an estimated population of about 162,000, with very high temperatures and a median population age of 28.

Combine the median age with high temperatures causing people to be indoors and it is very likely that there is a higher than normal amount of casual sex, per capita. Go Tempe!