Diamond Bar, California, is a city of 56,600 people east of Los Angeles, situated close to the Chino hills. About 15.6 percent of Diamond Bar's residents are seniors aged 65 and up, many living with Alzheimer's disease or another form of dementia, who require daily supervision and assistance with following a doctor's treatment plan.
The area in and around Diamond Bar has 19 memory care facilities for seniors with dementia, where trained staff look after residents in facilities that are often part of larger networks of long-term residential care facilities. These facilities are all required by the state to be licensed through the California Department of Social Services Adult Care Licensing Program, which monitors and reports on conditions at each of the thousands of sites it is charged with overseeing.