Kigoma Region is one of Tanzania's 30 administrative regions. The regional capital is the city of Kigoma. According to the 2012 national census, the region had a population of 2,127,930, which was higher than the pre-census projection of 1,971,332. For 2002-2012, the region's 2.4 percent average annual population growth rate was tied for the fourteenth highest in the country. It was also the sixteenth most densely populated region with 57 people per square kilometer. With a size of , the region is slightly smaller than Estonia .