A hypertonic solution (pronounced HÄ«-per-TAWN-ik) is a solution with a higher concentration of solute (dissolved substance) than some other, specified solution (and which therefore has a higher osmotic pressure than the other solution). The solution with the lower concentration is then termed hypotonic.
North Dakotaâs average retirement age is 64, up from 63 in 2015. We found that 9% of the stateâs residents are still working at age 80. Thatâs higher than the national labor force participation rate for people that age (6%).
Bottom Line. The average age that current U.S. retirees said they retired is now 61, compared with 59 in 2003 and 57 in 1993. It is likely that the average retirement age will continue to increase in the years ahead, as more nonretirees expect to delay their retirement past age 65.