U.S. County Mortality Data with ICD-10 Causes (1999-2009)

1999-2009 county-level national mortality and population data from U.S. death certificates. The dataset contains death counts, crude and age-adjusted death rates, standard errors, and confidence intervals. It is produced by the National Center for Health Statistics and can be filtered by residence, age, race, ethnicity, sex, and cause of death.

Use Cases

• Analyze age-adjusted death rates across county and state geographies to identify regional health disparities.
• Model trends in cause-of-death (ICD-10 code) prevalence by demographic variables like race, ethnicity, and sex over the 1999-2009 period.
• Investigate injury intent and mechanism categories or drug and alcohol related causes as a function of age group and place of death.
• Calculate crude death rates segmented by Hispanic ethnicity and single-year-of-age cohorts for infant mortality studies.

Strengths

• 11 years of continuous national mortality data (1999-2009).
• Granular breakdowns by county, single-year-of-age, 4 race groups, and Hispanic ethnicity.
• Includes multiple statistical measures: death counts, crude rates, age-adjusted rates, standard errors, and 95% confidence intervals.
• Covers detailed cause-of-death information via 4-digit ICD-10 codes and specific categories like injury intent.

Limitations

• Data is temporally stale, ending in 2009, limiting analysis of recent trends.
• The underlying HTML file format may require significant parsing and structuring for analytical use.
• Cause-of-death categorization relies on the accuracy and consistency of death certificate coding across jurisdictions.

Provenance

Source

National Center for Health Statistics, U.S. Department of Health & Human Services.

Collection Method

Based on death certificates for U.S. residents, each containing a single underlying cause of death and demographic data.

Time Range

1999-2009

Freshness

Data covers 1999-2009; metadata was last updated in July 2025.

Geography

United States, with data available at national, regional, state, and county levels.