Hai is one of the seven districts of the Kilimanjaro Region of Tanzania.The district covers approximately . It is bordered to the southwest by the Meru District of Arusha Region, to the west by the Siha District, and to the east by the Moshi Urban District and Moshi Rural District and the Rombo District to the far north. The western breach part of Mount Kilimanjaro is located in the Hai District. According to the 2012 census, the population of the Hai District was 210,533.
Administrative subdivisions
Wards
The Hai District is divided administratively into 10 wards:
Bomang'ombe
Bondeni
Muungano
Mnadani
Weruweru
Kia
Machame Kaskazini
Machame Magharibi
Machame Mashariki
Machame Narumu
Machame Uroki
Masama Kusini
Masama Magharibi
Masama Mashariki
Masama Kati
Romu
Masama Rundugai
In the Hai District, 80 percent of inhabitants have clean drinking water, and there are two new water supply schemes under construction to help the rest of the population. These are owned and operated by the people of Hai, and this makes them accountable for their own water.