This article is about the region. For the city, refer to Mtwara.Mtwara Region is one of Tanzania's 30 administrative regions. The regional capital is the municipality of Mtwara. According to the 2012 national census, the region had a population of 1,270,854, which was lower than the pre-census projection of 1,374,767. For 2002-2012, the region's 1.2 percent average annual population growth rate was the 26th highest in the country.