There is an islet on the northwest side of the atoll called Noumatong, which is uninhabited and is reserved as a bird sanctuary.

The eastern area of the atoll consists of tiny islets and islands which form a continuous line.

Benuaroa (a combined name for the islets of Mataboou and Tebuange) village held the least number of residents, with only 84 people or three percent of the total.

[5] The first priests in the Gilbert Islands, members of the Missionaries of the Sacred Heart, left France in 1888 and arrived on Nonouti on 10 May 1888.

[5] At the time of the arrival of the Missionaries of the Sacred Heart, Betero and Tiroi had already baptized 560 people and were instructing an additional 600.