Map - Northern Islands Municipality (Northern Islands Municipality)

Northern Islands Municipality is one of the four main political divisions of the Commonwealth of the Northern Mariana Islands. It consists of a long string of the northernmost islands of the Northern Marianas, including (from north to south) Farallon de Pajaros, the Maug Islands, Asuncion, Agrihan, Pagan, Alamagan, Guguan, Zealandia Bank, Sarigan, Anatahan, and Farallon de Medinilla. The total land area of the islands, including offshore islets and rocks, is 154.755 km² (59.75 sq mi).

As of the 2010 census, the municipality is reported to be uninhabited. Pagan and Agrihan are known to have seasonal populations. Many Northern Island inhabitants have secondary residences on Saipan due to economic, educational or other needs. Some islands had also been evacuated due to volcanic activities such as in the case of Anatahan (2003) and Pagan (early 1980s).

The mayor's office and municipality administration, traditionally in the village of Shomushon on Pagan, is now "in exile" on Saipan. In 2005 there were 99 votes cast in the municipality. For the NMI House of Representatives, Northern Islands voters are grouped with one of the Saipan districts.