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National Average Prevalence

National Average
73.7%
Category
Prevention
Counties Reporting
6,288

Prevalence Range

Lowest Prevalence
48.5%
Highest Prevalence
87.1%

Top 10 Highest-Prevalence Counties

Rank County State Prevalence
1 Plymouth MA 87.1%
2 Norfolk MA 86.6%
3 Plymouth MA 86.6%
4 Norfolk MA 86.4%
5 Anne Arundel MD 86.2%
6 Anne Arundel MD 86.0%
7 Suffolk MA 85.4%
8 Suffolk MA 85.0%
9 Jefferson AL 84.7%
10 Worcester MA 84.5%

Top 10 Lowest-Prevalence Counties

Rank County State Prevalence
1 Kusilvak AK 48.5%
2 Kusilvak AK 48.8%
3 Bethel AK 57.1%
4 Bethel AK 57.2%
5 San Juan NM 57.6%
6 Apache AZ 58.0%
7 Oglala Lakota SD 58.2%
8 Fairbanks North Star AK 58.4%
9 Oglala Lakota SD 58.5%
10 Nome AK 58.7%

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 →