California faces a surge in bed bug infestations, with five major cities topping national lists due to high travel, dense housing, and rapid spread. Los Angeles, San Francisco, San Diego, Oakland, and Long Beach report the highest treatment volumes, prompting local awareness campaigns and stricter landlord rules.
Los Angeles
LA ranks as the national epicenter, with infestations spiking over 35% yearly in hotels, apartments, and transit. The city mandates landlord disclosures under AB 551 and runs public education drives.
San Francisco
High housing density and tourism fuel steady increases in residential and commercial cases. Officials promote early detection via apps and hotlines amid national rankings.
San Diego
Downtown and coastal areas see heavy outbreaks tied to visitors and events. Local vector control offers identification advice but no free treatment.
Oakland
Rising cases link to urban density and goods movement; the city boosts community resources and pest awareness programs.
Long Beach
Port activity and travel contribute to growth; efforts include expanded extermination access and prevention tips for residents.
Sources:
- https://passingthru.com/californias-bed-bug-problem-5-cities-where-youre-most-likely-to-find-them/
- https://protectcali.org/2025/07/californias-bed-bug-boom/
