The states with the largest percentages of their Medicare fee-for-service beneficiaries having Alzheimer’s disease or another form of dementia are Texas (12%), Connecticut (11.94%), Florida (11.68%), New Jersey (11.35%), New York (11.22%), Michigan (10.73%), Louisiana (10.55%), Arkansas (10.50%) and Tennessee (10.45%). The national average prevalence is 10.03%.

That’s according to a new mapping tool, the Interactive Atlas of Chronic Conditions, from the Centers for Medicare & Medicaid Services. The tool lists county- and state-level prevalence data as percentages and numbers of beneficiaries, as well as a ratio to the national average prevalence. The data are from 2014.

In terms of sheer numbers, the states with the most Medicare fee-for-service beneficiaries who have Alzheimer’s/dementia: California (2,759,046), Texas (2,270,594), Florida (2,243,409), New York (1,847,784), Illinois (1,476,750), Pennsylvania (1,365,715), Michigan (1,236,024), Ohio (1,201,461), North Carolina (1,179,402) and New Jersey (1,124,559).

In addition to Alzheimer’s/dementia, the mapping tool also provides prevalence data for 15 other chronic conditions: arthritis, asthma, atrial fibrillation, cancer, chronic kidney disease, chronic obstructive pulmonary disease, depression, diabetes, heart failure, hyperlipidemia, hypertension, ischemic heart disease, osteoporosis, schizophrenia and other psychotic disorders, and stroke.