This year, people age 65 or older make up 15 percent or more of the population in only four states. And in no state do they constitute more than 20 percent of the population. But that picture is expected to shift dramatically in the next quarter-century. By 2025, more than half the 50 states are projected to have populations in which at least one in five residents is a senior citizen.
SOURCE: U.S. Census Bureau, series A population projections by age for 1995 to 2025.
