The entirety of Community District 3, which comprises Great Kills and other South Shore neighborhoods, had 159,132 inhabitants as of NYC Health's 2018 Community Health Profile, with an average life expectancy of 81.3 years at birth. This is about the same as the life expectancy of 81.2 for all New York City neighborhoods. Most inhabitants are youth and middle-aged adults: 21% are between the ages of between 0–17, 26% between 25–44, and 29% between 45–64. The ratio of college-aged and elderly residents was lower, at 8% and 16% respectively.