The number of US adults age 65 or older who have dementia is expected to grow, raising concerns about the demands on family members and other unpaid caregivers. This study uses the 2011 National Health and Aging Trends Study and its companion National Study of Caregiving to examine the role of dementia in caregiving for older adults who live in settings other than nursing homes. Although 10 percent of older adults have dementia, their caregivers account for one third of all family and unpaid caregivers and for 41 percent of all hours these caregivers provide to older adults. Regardless of their dementia status, most older adults receiving help in community and residential care settings other than nursing homes rely on family or unpaid caregivers. Caregiving is most intense, however, for those caring for persons with dementia, and particularly for spouses, daughters, and those who live with the care recipient.