Condition

Current lack of health insurance among adults aged 18-64 years

Condition ID: ACCESS2 · Category: Prevention

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National Average Prevalence

National Average
11.4%
Category
Prevention
Counties Reporting
5,914

Prevalence Range

Lowest Prevalence
3.6%
Highest Prevalence
43.7%

Top 10 Highest-Prevalence Counties

Rank County State Prevalence
1 Starr TX 43.7%
2 Starr TX 43.5%
3 Zapata TX 43.3%
4 Zapata TX 42.8%
5 Zavala TX 42.8%
6 Zavala TX 42.4%
7 Dimmit TX 41.6%
8 Jim Hogg TX 41.3%
9 Dimmit TX 41.1%
10 Willacy TX 40.8%

Top 10 Lowest-Prevalence Counties

Rank County State Prevalence
1 Barnstable MA 3.6%
2 Norfolk MA 3.8%
3 Dukes MA 3.9%
4 Norfolk MA 4.0%
5 Middlesex MA 4.0%
6 Middlesex MA 4.1%
7 Barnstable MA 4.1%
8 Hampshire MA 4.2%
9 Dukes MA 4.2%
10 Plymouth MA 4.4%

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 →