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National Average Prevalence

National Average
16.1%
Category
Health Risk Behaviors
Counties Reporting
5,914

Prevalence Range

Lowest Prevalence
6.4%
Highest Prevalence
40.3%

Top 10 Highest-Prevalence Counties

Rank County State Prevalence
1 Oglala Lakota SD 40.3%
2 Oglala Lakota SD 39.8%
3 Todd SD 37.9%
4 Todd SD 37.2%
5 Kusilvak AK 36.9%
6 Kusilvak AK 36.6%
7 Sioux ND 33.6%
8 Sioux ND 32.9%
9 Buffalo SD 32.1%
10 Buffalo SD 31.7%

Top 10 Lowest-Prevalence Counties

Rank County State Prevalence
1 Utah UT 6.4%
2 Summit UT 6.5%
3 Summit UT 6.6%
4 Falls Church VA 6.7%
5 Falls Church VA 6.7%
6 Utah UT 7.0%
7 Arlington VA 7.0%
8 Arlington VA 7.0%
9 Los Alamos NM 7.1%
10 Los Alamos NM 7.1%

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 →