Nyimba District is located in the Southern Part of Eastern Province, 330 km east of Lusaka the Capital City of Zambia and 240 km west of Chipata the Provincial Capital of Eastern Province. The District lies between 13°30′ latitude and 14°45′ longitude, 31° west and 32° east. It spans along the Great East Road Corridor and characterized by mountainous topography and flat terrain. The Administrative Boundary of Nyimba District borders with Luangwa, Rufunsa, Luano, Mkushi, Serenje, Lusangazi and Petauke districts and as well as The Republic of Mozambique. The scenery beauty of the district is enhanced by Luangwa River, which is one of major rivers in Zambia that cuts across North South of its Administrative boarder, thereby giving its spatial dynamics endowed with more varieties of flora and fauna.

Information on the age and sex structure is essential in the analysis of demographic data such as fertility, mortality and migration. The 2022 Census of Population and Housing provides the population statistics for Nyimba district