Stroke Mortality Rates by US County and Demographic Group 2021-2023

Age-standardized stroke mortality data for US adults aged 35+ provides spatially smoothed county-level rates. The dataset covers a 3-year average from 2021 to 2023 and can be analyzed by sex and racial/ethnic group. Data originates from the National Vital Statistics System.

Use Cases

• Analyze age-standardized mortality rate trends by sex and racial/ethnic group to identify health disparities.
• Map spatially smoothed county-level stroke mortality rates to visualize geographic patterns of cardiovascular health.
• Compare 3-year average mortality rates across US states and territories for public health surveillance.

Strengths

• Data is age-standardized, enabling valid comparisons across populations with different age structures.
• County-level rates are spatially smoothed, which can improve reliability for areas with small populations.
• Covers a defined 3-year average period (2021-2023) from a national vital statistics source.

Limitations

• Row and column counts are unknown, making the dataset's scale and feature set unclear for analysis planning.
• As a 3-year average, the data does not provide annual trends or granular temporal insights within the period.
• Methodology for spatial smoothing and age-standardization is not detailed in the provided input.

Provenance

Source

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

Collection Method

Aggregated from national vital statistics; rates are calculated, age-standardized, and spatially smoothed.

Time Range

3-year average for 2021-2023.

Freshness

Data was last updated on the platform in August 2025, but the underlying data covers 2021-2023.

Geography

United States, including states, territories, and counties.