Los Angeles County

- Population: 9,829,544
- Local Health Departments: 3
- Frequent Public Health Emergencies: Environmental Contamination, Extreme Weather (heat, rain, wind), Disease Outbreaks
- Key Emergency Operations Center Activations:
2020 – COVID-19 Pandemic - CDC PHEP Funding:
FY 2022: $20,923,151
FY 2021: $20,733,030
FY 2020: $19,648,468 - Public Health Crisis Response Funding:
Mpox 2023 Funding: $2,056,163
Mpox 2022 Funding: $ 1,031,213
COVID-19 2021 Funding: $59,714,865
COVID-19 2020 Funding: $26,367,806
- Epidemiologists: 6
- Laboratorians: 9
- Nurses: 15
- Planners: 27
- Other: 43*
*Includes IT specialists, administrative staff, statisticians, and other positions
1 Career Epidemiology Field Officer
- Community Preparedness
- Public Health Surveillance and Epidemiological Investigation
- Public Health Laboratory Testing
- Information Sharing
- Medical Countermeasure Dispensing

Over the course of four months in 2015 and 2016, 100,000 metric tons of methane gas leaked into the air from an underground storage facility near Los Angeles. Health department leadership directed the gas company to stop the leak and evacuate and pay for temporary relocation costs for more than 8,000 residents in the immediate vicinity. CDC-funded staff participated in a CASPER (Community Assessment for Public Health Emergency Response), and supported an indoor air quality study, soil testing, and air monitoring to assess chemicals and reported health problems.