Its population as of the 2007 census was 17,302 .
Mtfongwaneni is an inkhundla of Swaziland , located in the Manzini District .
Mtfongwaneni 's population as of the 2007 census was 17,302 .
Mtfongwaneni is an inkhundla of Swaziland , located in the Manzini District .