What Commonwealth's flag is in the picture?

The Northern Mariana Islands, officially the Commonwealth of the Northern Mariana Islands is an unincorporated territory and a commonwealth of the United States consisting of 14 islands in the northwestern Pacific Ocean. It includes the 14 northernmost islands in the Mariana Archipelago.

The flag of the Commonwealth of the Northern Mariana Islands was adopted in July 1985, by the Second Northern Marianas Constitution. The NMI flag was originally designed during the year 1985. Later during that year, they finalized the draft of the flag in the last CNMI constitutional convention. This was the most symbolic moment of the annexation of the CNMI.

The flag consists of three symbols: a star representing the United States, a latte stone representing the Chamorros, and a mwarmwar (decorative wreath) representing the Carolinians; the blue background represents the Pacific Ocean and the Mariana Trench.

The United States Department of the Interior cites a landmass of 183.5 square miles (475.26 km2). According to the 2020 United States Census, 47,329 people were living in the CNMI at that time. The vast majority of the population resides on Saipan, Tinian, and Rota. The other islands of the Northern Marianas are sparsely inhabited.

The administrative center is Capitol Hill, a village in northwestern Saipan. However, most consider Saipan to be the capital because the island is governed as a single municipality.