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National Average Prevalence

National Average
37.5%
Category
Health Outcomes
Counties Reporting
5,914

Prevalence Range

Lowest Prevalence
16.7%
Highest Prevalence
54.0%

Top 10 Highest-Prevalence Counties

Rank County State Prevalence
1 Perry AL 54.0%
2 Greene AL 53.4%
3 Humphreys MS 53.0%
4 Perry AL 52.9%
5 Greene AL 52.7%
6 Humphreys MS 52.4%
7 Wilcox AL 51.9%
8 Jefferson MS 51.7%
9 East Carroll LA 51.7%
10 Holmes MS 51.5%

Top 10 Lowest-Prevalence Counties

Rank County State Prevalence
1 Boulder CO 16.7%
2 San Francisco CA 17.1%
3 San Francisco CA 17.2%
4 Boulder CO 17.4%
5 New York NY 19.2%
6 Summit UT 19.3%
7 New York NY 19.5%
8 Summit UT 19.8%
9 Pitkin CO 20.3%
10 Pitkin CO 20.7%

Related Entities

Methodology

Data source: CDC PLACES County-Level Data (dataset ID: cdc-places). Vintage: 2026. Downloaded: 2026-04-13. Rows in source: 229,298.

CDC PLACES provides county-level prevalence estimates for chronic diseases, health behaviors, and preventive services from the Behavioral Risk Factor Surveillance System (BRFSS). Values represent model-based estimates of age-adjusted prevalence.

Full methodology →