The twenty-second century comprises the years 2101-2200. This is different from the century known as the twenty-one hundreds, which comprises the years 2100-2199.
... is spread out with 17.4% under the age of 18, 3.5% from 18 to 24, 22.3% from 25 to 44, 28.7% from 45 to 64, and 28.1% who are 65 years of age or older. The median age is 50 ...