The New York City Community Health Survey (CHS) is a telephone survey conducted annually by the New York City Department of Health and Mental Hygiene (DOHMH). The CHS provides robust data on the health of New Yorkers, including neighborhood, borough, and citywide estimates on a broad range of chronic diseases and behavioral risk factors. Based upon the United States national Behavioral Risk Factor Surveillance System (BRFSS) conducted by the Centers for Disease Control and Prevention, the CHS is a cross-sectional survey that samples approximately 10,000 adults aged 18 and older from all five boroughs of New York City -- Manhattan, Brooklyn, Queens, Bronx, and Staten Island. A computer-assisted telephone interviewing (CATI) system is used to collect survey data, and interviews are conducted in a variety of languages. All data collected are self-report. Data are available on 33 different neighborhoods, defined by ZIP code. The survey is conducted to inform health program decisions, to increase the understanding of the relationship between health behavior and health status, and to support health policy positions.