Wolfram Data Repository
Immediate Computable Access to Curated Contributed Data
The Underlying Cause of Death data available on the CDC's WONDER database are county-level national mortality and population data spanning the years 1999-2014. Data are based on death certificates for U.S. residents.
Data on suicides by US County from 1999-2013
Dataset of deaths and crude rates of fatal injuries in the United States from 1999 to 2014