Individuals 65 years of age or older are at the highest risk for having a stroke among all age groups, according to the American Stroke Association. The risk of stroke doubles approximately every decade of living for those who are 55 or older.
While age is one indicator of the likelihood of a stroke, others exist, such as family history, gender and race, states the American Stroke Association. African-Americans are at a higher risk of a stroke than other races due to their increased chances of developing high blood pressure, diabetes and obesity. Women also are at an increased risk compared to men, and their strokes are typically more likely to be fatal as well. One of the best indicators of a stroke's likelihood is whether an individual has suffered a prior stroke, transient ischemic attack or heart attack.