After Hours

One page per school.

For the 100 school defibrillators that would reach the most cardiac-arrest calls if they could be reached at any hour. Print one and take it to a principal, a council office or a facilities manager. Every brief also prints in Spanish: open one and choose Español.

Street map of P.S. 053 in the Bronx: the school's AED in red, its two-minute walking area in green, and a fire station 268 metres away in blue.
The brief for the top school, P.S. 053 in the Bronx. Each map is drawn by Amazon Location Service.

All 100 schools, ranked

Ranked by the 2025 cardiac-arrest calls expected inside each school's two-minute walk at hours when every AED in reach was locked. Download the list as CSV.

RankSchoolBoroughCalls a yearStaffed 24/7 within 400 m
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Built on AWS, end to end

Every number on this site comes from this pipeline. The code is open, so any city can run it on its own data.