As a municipal division, it is incorporated as Omsukchansky Urban Okrug.

[2] Its administrative center is the urban locality (an urban-type settlement) of Omsukchan.

[2] The split was formalized on July 16, 1954, which is considered the date of Omsukchansky District's foundation.

[1] The urban locality (an urban-type settlement) of Omsukchan serves as its administrative center.

[1] As a municipal division, the district has been incorporated as Omsukchansky Urban Okrug since January 1, 2015.