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National Average Prevalence

National Average
84.2%
Category
Prevention
Counties Reporting
5,914

Prevalence Range

Lowest Prevalence
63.7%
Highest Prevalence
93.3%

Top 10 Highest-Prevalence Counties

Rank County State Prevalence
1 Sumter FL 93.3%
2 Barnstable MA 92.9%
3 Dukes MA 92.2%
4 Leelanau MI 91.9%
5 Hamilton NY 91.8%
6 Northumberland VA 91.6%
7 Nantucket MA 91.6%
8 Howard MD 91.6%
9 Brunswick NC 91.5%
10 Talbot MD 91.5%

Top 10 Lowest-Prevalence Counties

Rank County State Prevalence
1 Madison ID 63.7%
2 Kalawao HI 67.4%
3 Kusilvak AK 67.5%
4 Bethel AK 69.6%
5 Kusilvak AK 70.4%
6 Oglala Lakota SD 71.6%
7 Bethel AK 71.7%
8 Nome AK 72.4%
9 Todd SD 72.5%
10 Northwest Arctic AK 72.9%

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 →