Like the rest of the world, the US is an aging society. Between 2000 and 2050, the number of older people is projected to increase by 135%. Moreover, the population aged 85 and over, which is the group most likely to need health and long-term care services, is projected to increase by 350%. Over this time period, the proportion of the population that is over the age of 65 will increase from 12.7% in 2000 to 20.3% in 2050; the proportion of the population that is age 85 and older will increase from 1.6% in 2000 to 4.8% in 2050.