Topsail Beach is a town located in Onslow County, North Carolina. Topsail Beach has a 2026 population of 500. Topsail Beach is currently growing at a rate of 0.4% annually and its population has increased by 7.07% since the most recent census, which recorded a population of 467 in 2020.
The median household income in Topsail Beach is $93,250 with a poverty rate of 7.64%. The median age in Topsail Beach is 68.2 years: 66.9 years for males, and 68.6 years for females. For every 100 females there are 82.9 males.