The 2010 Census shows a population density of 3,909/km2. About 3/4 of the population live in the northern part and part of city center called "Northern Territory". 1/4 live in the "Southern Territory" that was the Nanhui District. The Northern Territory has a 6,667 population density, while the Southern Territory has 1,732/km2. Suburbs saw a greater increase in population during 2000–2010 with the help of the city's suburb expansion policy. Some counties in the traditional city center saw a population decrease.