Nikolaevsk (Russian: Никола́евск, IPA: [nʲɪkɐˈɫa(j)ɪfsk]) is a census-designated place (CDP) in Kenai Peninsula Borough in the U.S. state of Alaska.

[3] The travels of the group from Russia, as well as the story of the founding of Nikolaevsk, is told in a 1972 article in National Geographic,[4] a 2013 episode on the NatGeo channel called Russian Alaska, and a 2013 article in The Atlantic magazine.

Nikola Yakunin, his son Deacon Vasily Yakunin and about 20 families decided to join the Russian Orthodox Church Outside of Russia (semi-autonomous part of Moscow Patriarchate) on the rights of the edinoverie.

It was reported that the community was largely Americanized and it turned out to be problematic to pray in the already almost forgotten Church Slavonic language.

[10] According to the United States Census Bureau, the CDP has a total area of 34.8 square miles (90.2 km2), all of it recorded as land.

Nikolaevsk is in the boreal wet forest biome, according to the Holdridge life zones system.

Nikolaevsk features a subarctic climate (Köppen: Dfc) with short, quite mild summers and long, cold winters.