COVID-19 fatalities by zip codes and socioeconomic indicators across various U.S. regions

•First national sampling of COVID-19 Case Fatality Ratio (CFR) at the zip code level.•Population density and unemployment rate did not correlate to COVID-19 CFR.•Significant positive correlation was found between CFR and median household income.•Nursing homes were concentrated in zip codes with high COVID-19 CFR.•States should make COVID-19 data available at the zip code level.