Hai Mjini

The ward covers an area of 54 km2 (21 sq mi),[1] and has an average elevation of 1,388 m (4,554 ft).

[3] The ward contains the rapidly growing town of Boma Ng'ombe (alternately spelled as "Bomang'ombe" ) meaning a bovine palisade.

The population of Boma Ng'ombe,[4] based on the 2002 Tanzanian census,[5] was 17,674.

Geographically, Boma Ng'ombe is located between the Sanya River and the Mungushi gulch and straddles the Arusha-Himo road about 17 kilometers from the Kilimanjaro International Airport.

The town has a public market open twice per week.