1. Vatican City has the highest crime rate in the world! With a population around 500 people and a little over one crime per day, the Vatican crime rate is above 100 percent, per capita. Although the fact is shocking it should be remembered that the Vatican is about one square mile in size, and has nearly 20 million visitors annually. Most of the crimes are pickpockets, purse snatching and other petty offenses done by outsiders.