Who Is Enrolled

From 2003 to 2004, over 71,000 people enrolled in the WTC Health Registry by completing an initial survey (Wave 1). The survey involved a 30-minute telephone or in-person interview. Among these enrollees were 2,869 children 18 years of age or younger at the time of the interview. Data for children were collected by proxy interviews with a parent or guardian. Although more than 85% live in the New York City greater metropolitan area (New York, New Jersey and Connecticut) there are enrollees from every state and 15 other countries.

Download a map of all enrollees by state (PDF).
Download a map of rescue and recovery workers and volunteers by state (PDF).

More than half of all enrollees reported being caught in the dust and debris cloud from the WTC collapse.

Among all enrollees on 9/11:

  • More than 43,000 were building occupants and passers-by in Lower Manhattan south of Chambers Street, including 4,000 survivors of the collapsed WTC Towers.
  • Close to 15,000 lived south of Canal Street in Lower Manhattan.
  • Approximately 3,200 were children and staff in schools (pre K-12) south of Canal Street.
  • About 31,000 were rescue, recovery and cleanup workers and volunteers at the WTC site, the Staten Island recovery operation site or on the barges that carried debris between these two sites, at least one shift from September 11, 2001 to June 30, 2002. They include nearly 4,000 police officers and more than 3,000 firefighters and  2,000 NYC sanitation workers.

Among enrollees, 28% met the criteria for more than one of the four eligibility categories above, with the greatest overlap found among rescue/recovery workers and residents who were also present in Lower Manhattan on 9/11.