Petropavlovsk-Kamchatsky (Russian: Петропавловск-Камчатский, IPA: [pʲɪtrɐˈpavləfsk kɐmˈtɕatskʲɪj] (listen)) is a city and the administrative, industrial, scientific, and cultural center of Kamchatka Krai, Russia. As of the 2021 Census its population is 164,900. The city is widely known simply as Petropavlovsk (literally "city of Peter and Paul"). The adjective Kamchatsky ("Kamchatkan") was added to the official name in 1924.