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Sonoma County, California

Low risk

Gera County Health Risk Index: 33/100 · National rank 382 of 480 · Population: 481,812 · CDC PLACES June 2026

What is the chronic-disease health risk in Sonoma County, California?

As of June 2026, Sonoma County, California has a Gera County Health Risk Index of 33/100 (national rank 382/480; low risk). Adult chronic-disease prevalence: obesity 26.1%, diabetes 10.7%, coronary heart disease 6.4%, smoking 10.6%. Source: CDC PLACES June 2026.

Source:CDC PLACES: Local Data for Better Health, County Data 2023 release·as of June 2026updated annually (last: )
Gera County Health Risk Index33.0 / 100Rank 382 of 480 most-populous US counties. Computed from CDC PLACES June 2026 crude prevalence for 4 chronic-disease measures, weighted and normalised 0–100. Higher = higher risk.How this index is calculated

Chronic-disease prevalence — Sonoma County (CDC PLACES June 2026)

Sonoma County, California — CDC PLACES June 2026 crude prevalence (adults)
MeasurePrevalenceWeight in GCHRI
Obesity26.1%25%
Diagnosed diabetes10.7%25%
Coronary heart disease6.4%30%
Current cigarette smoking10.6%20%
GCHRI composite score33.0 / 100—

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Search any of the 480 most-populous US counties to compare GCHRI scores and CDC prevalence rates.

Sonoma County, California

Population: 481,812 · National rank: 382 / 480 (by chronic-disease risk)

Low risk

Gera County Health Risk Index

33.0 / 100

Obesity

26.1%

adults

Diabetes

10.7%

adults

Heart Disease

6.4%

adults

Smoking

10.6%

adults

Source: CDC PLACES, June 2026 · Crude prevalence, adults · Full county page →

Other counties in California

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Frequently asked questions

What is the Gera County Health Risk Index for Sonoma County, CA?
Sonoma County, CA has a Gera County Health Risk Index (GCHRI) of 33/100, ranking 382 out of 480 most-populous US counties (rank 1 = highest chronic-disease risk). This places it in the low-risk tier. Source: CDC PLACES (June 2026).
What is the obesity rate in Sonoma County?
The adult obesity prevalence in Sonoma County, CA is 26.1% (CDC PLACES, June 2026, crude prevalence). The national mean across the 480 included counties is 26.1%.
What is the diabetes rate in Sonoma County?
The diagnosed diabetes prevalence among adults in Sonoma County, CA is 10.7% (CDC PLACES, June 2026, crude prevalence).
What is the coronary heart disease rate in Sonoma County?
The coronary heart disease prevalence among adults in Sonoma County, CA is 6.4% (CDC PLACES, June 2026, crude prevalence).
What is the smoking rate in Sonoma County?
The current cigarette smoking prevalence among adults in Sonoma County, CA is 10.6% (CDC PLACES, June 2026, crude prevalence).

Concerned about health risks in Sonoma County?

A GeraClinic care navigator can help you understand what these CDC chronic-disease rates mean for you personally, assess your individual risk factors, and connect you with preventive-care resources — fully online.

Talk to a GeraClinic care navigatorHow the Gera County Health Risk Index is calculated

Contains public sector information published by U.S. Centers for Disease Control and Prevention (CDC) and licensed under the U.S. Public Domain (federal government work, 17 U.S.C. § 105). Source: CDC PLACES: Local Data for Better Health, County Data 2023 release (June 2026, published 2023 (released 2024)).

Informational/educational only — not a substitute for professional medical advice; a clinician interprets results.