Opioid Overdoses and Approved Naloxone by County

There are two heat maps of California.

Opioid Overdoses per 100,000 Residents

The first heat map displays the rate of overdoses per 100,000 residents in each county in 2023.

• Counties in northern California have the highest overdose rates, particularly in rural areas.
• Urban and central regions tend to have lower rates.
• Minimal or no overdoses are reported in Modoc, Mono, and Trinity counties.

5 Counties with the Highest Rates of Opioid Overdoses:

1. Alpine
2. Sierra
3. San Francisco
4. Humboldt
5. Santa Cruz

5 Counties with the Lowest Rates of Opioid Overdoses:

1. Modoc
2. Mono
3. Trinity
4. Madera
5. Kings

Approved Naloxone Kits per 100,000 Residents

The second heat map displays the rate of approved naloxone kits per 100,000 residents between 2018 and 2024.

• Northern and rural counties exhibit the lowest naloxone distribution rates.
• Central and southern counties, including many urban areas, exhibit higher naloxone distribution rates.

5 Counties with the Highest Rates of Naloxone Distribution:

1. Alpine
2. Lake
3. Humboldt
4. Del Norte
5. Tuolumne

5 Counties with the Lowest Rates of Naloxone Distribution:

1. Mariposa
2. Tulare
3. San Mateo
4. San Bernardino
5. Merced