With a population of over 300,000 in the main city, the people of Zurich are surprisingly diverse. Over 30 per cent of the population consists of Germans who do not hold Swiss citizenship. 22 per cent are Italians who do not hold Swiss passports either. There are over one million people living in the suburbs of the city. The people are generally friendly but one must be on the look-out for pickpockets and drunken brawls.