Welcome to Dennis' Air Raid Siren Page

For The

Los Angeles Area



As of January 2012, 75.34% of the sirens still exist.

As of January 2019, 71.58% of the sirens still exist.

As of July 2019, 69.04% of the sirens still exist.

As of July 2020, 64.45% of the sirens still exist.



Special Thanks to Joel Clark for improving the Interactive Map!



Introduction & What's New