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St. Tammany County, Louisiana

High risk

Gera County Health Risk Index: 56.4/100 · National rank 83 of 480 · Population: 275,583 · CDC PLACES June 2026

What is the chronic-disease health risk in St. Tammany County, Louisiana?

As of June 2026, St. Tammany County, Louisiana has a Gera County Health Risk Index of 56.4/100 (national rank 83/480; high risk). Adult chronic-disease prevalence: obesity 37.4%, diabetes 13.3%, coronary heart disease 7.0%, smoking 14.5%. 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 Index56.4 / 100Rank 83 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 — St. Tammany County (CDC PLACES June 2026)

St. Tammany County, Louisiana — CDC PLACES June 2026 crude prevalence (adults)
MeasurePrevalenceWeight in GCHRI
Obesity37.4%25%
Diagnosed diabetes13.3%25%
Coronary heart disease7.0%30%
Current cigarette smoking14.5%20%
GCHRI composite score56.4 / 100—

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St. Tammany County, Louisiana

Population: 275,583 · National rank: 83 / 480 (by chronic-disease risk)

High risk

Gera County Health Risk Index

56.4 / 100

Obesity

37.4%

adults

Diabetes

13.3%

adults

Heart Disease

7.0%

adults

Smoking

14.5%

adults

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

Other counties in Louisiana

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Frequently asked questions

What is the Gera County Health Risk Index for St. Tammany County, LA?
St. Tammany County, LA has a Gera County Health Risk Index (GCHRI) of 56.4/100, ranking 83 out of 480 most-populous US counties (rank 1 = highest chronic-disease risk). This places it in the high-risk tier. Source: CDC PLACES (June 2026).
What is the obesity rate in St. Tammany County?
The adult obesity prevalence in St. Tammany County, LA is 37.4% (CDC PLACES, June 2026, crude prevalence). The national mean across the 480 included counties is 37.4%.
What is the diabetes rate in St. Tammany County?
The diagnosed diabetes prevalence among adults in St. Tammany County, LA is 13.3% (CDC PLACES, June 2026, crude prevalence).
What is the coronary heart disease rate in St. Tammany County?
The coronary heart disease prevalence among adults in St. Tammany County, LA is 7.0% (CDC PLACES, June 2026, crude prevalence).
What is the smoking rate in St. Tammany County?
The current cigarette smoking prevalence among adults in St. Tammany County, LA is 14.5% (CDC PLACES, June 2026, crude prevalence).

Concerned about health risks in St. Tammany 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.