Mosquito control

Who's responsible for mosquito control in King County?

Mosquito control on private property (PDF)

What private drainage system owners should know (PDF)

Information for cities and King County agencies

Quick tips on how to prevent your property from becoming a mosquito breeding ground:


Report dead birds
Report dead birds

Help us fight West Nile virus! If you see a dead bird in King County, report it on our online form or call 206-205-4394 to tell us about it.