Based on the provided source material, there is no information confirming that Mhango is a city in Tanzania. The name primarily appears as a surname associated with various individuals from several African countries.
Notable figures with this surname include Banele Mhango, a South African chess master and coach; Bazuka Mhango, a Malawian lawyer and politician; and Margaret Mhango, a Zambian government minister. Other individuals listed include international footballers Gabadinho Mhango and Mwisho Mhango, as well as economists Geoffrey Du Mhango and Yvonne Mhango.