Concord had the tenth largest numeric change in population, totaling 12,777 over 50 years, from 27,988 in 1950 to 40,765 in 2000. The largest decennial percent change was a 22 percent increase between 1980 and 1990; all other decades increased by ten percent or less. The 2005 Census estimate for Concord was 42,336 residents, which ranked third among New Hampshire's incorporated cities and towns.