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Somerset County, New Jersey

Low risk

Gera County Health Risk Index: 22.7/100 · National rank 456 of 480 · Population: 348,842 · CDC PLACES June 2026

What is the chronic-disease health risk in Somerset County, New Jersey?

As of June 2026, Somerset County, New Jersey has a Gera County Health Risk Index of 22.7/100 (national rank 456/480; low risk). Adult chronic-disease prevalence: obesity 26.3%, diabetes 10.1%, coronary heart disease 4.9%, smoking 8.2%. 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 Index22.7 / 100Rank 456 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 — Somerset County (CDC PLACES June 2026)

Somerset County, New Jersey — CDC PLACES June 2026 crude prevalence (adults)
MeasurePrevalenceWeight in GCHRI
Obesity26.3%25%
Diagnosed diabetes10.1%25%
Coronary heart disease4.9%30%
Current cigarette smoking8.2%20%
GCHRI composite score22.7 / 100—

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

Somerset County, New Jersey

Population: 348,842 · National rank: 456 / 480 (by chronic-disease risk)

Low risk

Gera County Health Risk Index

22.7 / 100

Obesity

26.3%

adults

Diabetes

10.1%

adults

Heart Disease

4.9%

adults

Smoking

8.2%

adults

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

Other counties in New Jersey

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Frequently asked questions

What is the Gera County Health Risk Index for Somerset County, NJ?
Somerset County, NJ has a Gera County Health Risk Index (GCHRI) of 22.7/100, ranking 456 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 Somerset County?
The adult obesity prevalence in Somerset County, NJ is 26.3% (CDC PLACES, June 2026, crude prevalence). The national mean across the 480 included counties is 26.3%.
What is the diabetes rate in Somerset County?
The diagnosed diabetes prevalence among adults in Somerset County, NJ is 10.1% (CDC PLACES, June 2026, crude prevalence).
What is the coronary heart disease rate in Somerset County?
The coronary heart disease prevalence among adults in Somerset County, NJ is 4.9% (CDC PLACES, June 2026, crude prevalence).
What is the smoking rate in Somerset County?
The current cigarette smoking prevalence among adults in Somerset County, NJ is 8.2% (CDC PLACES, June 2026, crude prevalence).

Concerned about health risks in Somerset 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.