By gauging the last official population estimate and recent growth rates, we estimate that the population of Delaware is 955,900 in 2016. At the time of the 2010 Census, the population of Delaware was recorded at 897,934, which represented a 14.6% rise on the 2000 figure of 783,600. An estimate in 2015 claims that the population within the state had risen to 945,934, and this would make Delaware the 45th largest state in the USA as far as population.