Public utilities in Mokokchung are managed by various state government departments and local municipal bodies.
* **Electricity:** Power distribution is managed by the Department of Power, Government of Nagaland. While the grid has improved significantly, residents occasionally experience load shedding, especially during monsoons. * **Water Supply:** The Public Health Engineering Department (PHED) provides piped water to various wards. Due to seasonal variations, many households also rely on private water harvesting, natural springs, and private water tankers. * **Waste Management:** The **Mokokchung Municipal Council (MMC)** oversees solid waste management. The town is known for its active community participation in cleanliness, with regular ward-level sanitation drives making it one of the cleanest urban centers in the state. * **Telecommunications & Internet:** Major telecom operators such as Jio, Airtel, and BSNL provide 4G mobile networks and broadband services. Fiber internet connectivity is increasingly available in the main town area. * **Cooking Gas:** LPG cylinders are the primary cooking fuel, distributed by local agencies affiliated with national petroleum companies.

