Heart Disease Mortality Rates by US County and Demographics 2019-2021

U.S. county-level data provides age-standardized, spatially smoothed mortality rates for heart disease among adults aged 35 and older from 2019 to 2021. The dataset can be analyzed by sex and race/ethnicity categories. It originates from the National Vital Statistics System and is maintained by the U.S. Department of Health & Human Services.

Use Cases

• Analyze age-standardized mortality rate trends by sex and race/ethnicity across U.S. counties.
• Map spatially smoothed county-level mortality rates to identify geographic disparities in cardiovascular health outcomes.
• Investigate the 3-year average mortality rate for heart disease across different demographic segments.

Strengths

• Data is age-standardized and spatially smoothed at the county level, enhancing comparability.
• Covers a 3-year period (2019-2021), providing a multi-year average for stable estimates.
• Includes demographic breakdowns by sex and race/ethnicity for stratified analysis.

Limitations

• Row and column counts are unknown, limiting assessment of dataset scale and feature richness.
• The 3-year average may obscure annual trends or specific events within the 2019-2021 period.
• County-level smoothing, while beneficial for stability, may mask hyper-local mortality variations.

Provenance

Source

National Vital Statistics System, U.S. Department of Health & Human Services.

Collection Method

Aggregated from vital statistics records, with rates calculated, age-standardized, and spatially smoothed.

Time Range

2019 to 2021 (3-year average).

Freshness

Data was last updated in February 2025, indicating recent maintenance.

Geography

United States, including states, territories, and counties.