Kilombero is the name of a river and a district in Morogoro Region

Morogoro Region

Morogoro Region is one of the regions of Tanzania. Its capital is Morogoro. It is bordered to the North by the Tanga Region, to the East by the Pwani and Lindi Regions, to the South by the Ruvuma Region and to the West by the Iringa and Dodoma Regions....

, south-western Tanzania

Tanzania

The United Republic of Tanzania is a country in East Africa bordered by Kenya and Uganda to the north, Rwanda, Burundi, and the Democratic Republic of the Congo to the west, and Zambia, Malawi, and Mozambique to the south. The country's eastern borders lie on the Indian Ocean.Tanzania is a state...

.

The district is situated in a vast floodplain, between the Kilombero river in the south-east and the Udzungwa-Mountains in the north-west. On the other side of the Kilombero River, in the south-east, the floodplain

Zambezian flooded grasslands

The Zambezian flooded grasslands is an ecoregion of southern and eastern Africa that is rich in wildlife.-Setting:The Zambezian flooded grasslands can be found on seasonally or permanently flooded lowlands in the basin of the Zambezi and neighboring river basins...

 is part of Ulanga

Ulanga

Ulanga is the name of a river and one of the 6 districts of the Morogoro Region of Tanzania. It is bordered to the North and West by the Kilombero District, to the East by the Lindi Region and to the South by the Ruvuma Region....

 district.

According to the last census in 2002, the population of Kilombero District is 321,611 http://www.tanzania.go.tz/census/districts/kilombero.htm
The main ethnic groups are Wapogoro, Wandamba, Wabena, and Wambunga and several others in small proportions.

The area is predominantly rural with the semi-urban district headquarter Ifakara

Ifakara

Ifakara is a small rural town in the Kilombero district, Morogoro region, south central Tanzania. It is the headquarter of the Kilombero district administration and the main trading centre for Kilombero and Ulanga districts...

 as major settlement.

The majority of the villagers are subsistence farmers of maize and rice. There are large plantations of teak wood in the Kilombero and the neighbouring Ulanga districts. In the north-west of the district, Illovo Sugar Company's sugar-cane plantations occupy most of the lowlying area.

Wards

The Kilombero District is administratively divided into 19 wards:

Chisano	Kiberege	Masagati	Mofu
Chita	Kidatu Kidatu Kidatu is a town in southern Tanzania located in Kilombero district, Morogoro Region. The local population is about 3300. Primary economic activity is the large Illovo sugar plantation.Kidatu is a town in central Tanzania...	Mbingu	Sanje
Idete	Kisawasawa	Mchombe	Uchindile
Ifakara Ifakara Ifakara is a small rural town in the Kilombero district, Morogoro region, south central Tanzania. It is the headquarter of the Kilombero district administration and the main trading centre for Kilombero and Ulanga districts...	Lumelo	Mkula	Utengule
Kibaoni	Mang'ula	Mlimba