Living at home may not be the most viable option for seniors who have dementia. Prevalence rates for dementia are rising exponentially and impact finances, personal relationships, and options for care in significant and measurable ways. This study investigated the impact of place of residence on the cognitive function of those with dementia. The purpose of this study was to evaluate change in cognitive function in seniors with dementia who live in assisted living communities compared with that of those who live at home. Medical records reviewed provided data for the comparison. Cognitive decline was greater for those living at home compared with those living in an assisted living community. The study and its implications for nursing research, education, and practice are discussed.