The region is comparable in size to the combined land area of the nation state of Slovenia.

[6] Geita Region covers an area of 20,054 km2 (7,743 sq mi).

In the north, the waters of Lake Victoria also encircle the area.

[10] The area was created in March 2012 from sections of the Shinyanga, Kagera, and Mwanza Regions.

[11][12][10] The area that is now Geita Region has been inhabited by Bantu peoples for thousands of years.

The area is the ancestral home to the Zinza people who live on the shore of Lake Victoria.

[2]: 11 [14]: 219 Geita's economy is dominated by the extraction industry especially the mining gold.