Los Angeles County Department of Mental Health | 8,689 followers on LinkedIn. Optimizing hope, recovery, wellbeing and life trajectory of LA County through access to mental health care & resources. | The Los Angeles County Department of Mental Health (LACDMH) is the largest county mental health department in the country. LACDMH directly operates 75 program sites and more than 100 co-located sites. Additionally, LACDMH contracts with approximately 1,000 providers, including non-governmental agencies and individual practitioners who provide a spectrum of mental health services to people of all ages to support hope, wellbeing and recovery.