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Johnston County, North Carolina

Moderate risk

Gera County Health Risk Index: 46.4/100 · National rank 210 of 480 · Population: 241,955 · CDC PLACES June 2026

What is the chronic-disease health risk in Johnston County, North Carolina?

As of June 2026, Johnston County, North Carolina has a Gera County Health Risk Index of 46.4/100 (national rank 210/480; moderate risk). Adult chronic-disease prevalence: obesity 35.1%, diabetes 11.6%, coronary heart disease 5.9%, smoking 14.2%. 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 Index46.4 / 100Rank 210 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 — Johnston County (CDC PLACES June 2026)

Johnston County, North Carolina — CDC PLACES June 2026 crude prevalence (adults)
MeasurePrevalenceWeight in GCHRI
Obesity35.1%25%
Diagnosed diabetes11.6%25%
Coronary heart disease5.9%30%
Current cigarette smoking14.2%20%
GCHRI composite score46.4 / 100—

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Johnston County, North Carolina

Population: 241,955 · National rank: 210 / 480 (by chronic-disease risk)

Moderate risk

Gera County Health Risk Index

46.4 / 100

Obesity

35.1%

adults

Diabetes

11.6%

adults

Heart Disease

5.9%

adults

Smoking

14.2%

adults

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

Other counties in North Carolina

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Frequently asked questions

What is the Gera County Health Risk Index for Johnston County, NC?
Johnston County, NC has a Gera County Health Risk Index (GCHRI) of 46.4/100, ranking 210 out of 480 most-populous US counties (rank 1 = highest chronic-disease risk). This places it in the moderate-risk tier. Source: CDC PLACES (June 2026).
What is the obesity rate in Johnston County?
The adult obesity prevalence in Johnston County, NC is 35.1% (CDC PLACES, June 2026, crude prevalence). The national mean across the 480 included counties is 35.1%.
What is the diabetes rate in Johnston County?
The diagnosed diabetes prevalence among adults in Johnston County, NC is 11.6% (CDC PLACES, June 2026, crude prevalence).
What is the coronary heart disease rate in Johnston County?
The coronary heart disease prevalence among adults in Johnston County, NC is 5.9% (CDC PLACES, June 2026, crude prevalence).
What is the smoking rate in Johnston County?
The current cigarette smoking prevalence among adults in Johnston County, NC is 14.2% (CDC PLACES, June 2026, crude prevalence).

Concerned about health risks in Johnston 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.