Swahili is spoken in Tanzania.
Tanzania . Swahili and English are Tanzania 's official languages . Approximately 10 % of Tanzanians speak Swahili as a first language , and up to 90 % speak it as a second language . Most Tanzanians thus speak both Swahili and a local language ; many educated Tanzanians are trilingual ; also speaking English . Young children increasingly speak Swahili as a first language , mostly in urban areas .