Human Mortality Database from 1980 to 2014 for 29 cancers. During that time there were 19.5 million cancer deaths in the U.S. In 1980 the cancer mortality rate was 240.2 per 100,000, but declined to 192 per 100,000 in 2014.
|Change in mortality rates for neoplasms, 1980-2014|
"Three of the five counties with the lowest 2014 rates were in the Colorado Rockies, where rates dropped by up to 60 percent," Tanner writes. "Death rates for breast and colorectal cancers increased in Madison County, Mississippi and in 2014 were at least five times higher there than in Summit County, Colorado, where the rates fell."
Researchers found that "for many cancers, there were distinct clusters of counties with especially high mortality. Clusters of breast cancer were present in the southern belt and along the Mississippi River, while liver cancer was high along the Texas-Mexico border, and clusters of kidney cancer were observed in North and South Dakota and counties in West Virginia, Ohio, Indiana, Louisiana, Oklahoma, Texas, Alaska and Illinois."