The entirety of Community District 2, which comprises Dongan Hills and other Mid-Island neighborhoods, had 134,657 inhabitants as of NYC Health's 2018 Community Health Profile, with an average life expectancy of 81.2 years. This is the same as the median life expectancy of 81.2 for all New York City neighborhoods. Most inhabitants are youth and middle-aged adults: 20% are between the ages of between 0–17, 25% between 25–44, and 29% between 45–64. The ratio of college-aged and elderly residents was lower, at 8% and 18% respectively.