By 2050, experts estimate the number will jump to 13.8 million afflicted U.S. adults ages 65 and up.
The increase is due to multiple factors, including the growing population of older adults and increased reporting and diagnosis by physicians and medical examiners among others, according to the report.
While most U.S. Alzheimer’s disease deaths occurred in a nursing home or a long-term care facility, that number has dramatically declined since 1999, from 14.7 percent to 6.6 percent in 2014.
Instead, more and more patients died at home instead of in medical facilities. About a quarter of Alzheimer’s patients in 2014 spent their last days at home compared to just 13.9 percent in 1999.
“Millions of Americans and their family members are profoundly affected by Alzheimer's disease,” CDC acting director Anne Schuchat said in a statement. “As the number of older Americans with Alzheimer's disease rises, more family members are taking on the emotionally and physically challenging role of caregiver than ever before.”
And those caring for Alzheimer’s or dementia patients provided 18.2 billion hours of unpaid assistance in 2015.
“This is a tidal wave of Alzheimer's disease that is now upon us. We've been saying Baby Boomers are getting older and we have to be ready. Now it's here. It's here, and it's not going away unless we do something serious about it. Ultimately, we want to eradicate this disease. That is possible,” Keith Fargo, director of scientific programs at the Alzheimer’s Association, told CBS News.