The largest city and capital is Phnom Penh, with a population of 1.4 million, or 2.2 million in the metropolitan area. The next largest city is Battambang, with a population not yet reaching 200,000.
90% of Cambodia's population is of Khmer origin, speaking the Khmer language. The population of Cambodia is fairly homogeneous with other ethnic groups being Vietnamese (5%) and Chinese (1%).