Lake Ozark is a city in Camden and Miller counties in the U.S. state of Missouri, near its namesake, the Lake of the Ozarks. The population …Lake Ozark is a city in Camden and Miller counties in the U.S. state of Missouri, near its namesake, the Lake of the Ozarks. The population was 2,077 at the 2020 census. A post office called Lake Ozark has been in operation since 1932. The community took its name from the nearby Lake of the Ozarks.