Mosquito control involves reducing the number of mosquitoes in an area through either mechanical or chemical methods. Although we should all work to reduce the number of mosquitoes in our area, the responsibility of mosquito control ultimately lies with the property owner (city, county, or private ownership). As a result, mosquito control measures are determined by the landowner.
If you believe that a stormwater pond is a source of mosquitoes, look for a sign posted near the pond or call your local public utilities office to determine who is responsible. If you are not sure who owns the stormwater pond, call your city or county government for more information.
Each city has its own plan for dealing with mosquito problems and stagnant water. Please contact your city’s Public Utilities department, found in the government section of your phone book, if you have a problem or question relating to mosquito control policies.
If there is a potential mosquito problem on private property, you may file a complaint with Public Health's Environmental Health Division by calling 206-263-9566. Public Health does not have any regulatory authority to require property owners to remove mosquito habitat except if the habitat is in violation of solid waste law. We can send educational materials that provide guidance on reducing habitat. If the habitat is on public property, we will inform and advise the appropriate property owner. For additional guidance refer to mosquito control on private property (PDF).
Permitted swimming pools on private property:
If you have a concern about a public swimming pool or wading pool or a swimming pool at an apartment or condominium complex contact Environmental Health’s Food and Facilities Program at 206-263-9566.
Help us fight West Nile virus! If you see a dead bird in King County, report it through the Washington State Dept. of Health's online dead bird reporting website linked above or call us at 206-263-9566 to tell us about it.
All information is general in nature and is not intended to be used as a substitute for appropriate professional advice. For more information, please call 206-296-4600 (voice) or TTY Relay: 711 or toll-free, 800-325-6165. Mailing address: 401 5th Ave., Suite 1300, Seattle, WA 98104 or click here to email us. Because of confidentiality concerns, questions regarding client health issues cannot be responded to by e-mail. Please read the Notice of Privacy Practices. For more information, contact the Public Health Privacy Office at 206-263-8255.