The Delta region has a steadily growing population estimated to be over 30 million people as of 2005, accounting for more than 23% of Nigeria's total population. The population density is also among the highest in the world with 265 people per kilometre-squared (reference NDDC). This population is expanding at a rapid 3% per year and the oil capital, Port Harcourt, along with other large towns are growing quickly. Since 2005 there have been addition of States to the number of States that makes up the Niger Delta, estimating about 32% of the entire Nigerian population.
