griswold iowa population
Griswold, IA Population and Races. As of 2010-2014, the total population of Griswold is 1,182, which is 13.76% more than it was in 2000. The population growth rate is much higher than the state average rate of 5.19% and is higher than the national average rate of 11.61%. The Griswold population density is 1,920.03 people per square mile, which is much higher than the state average density of 54.70 people per square mile and is much higher than the national average density of 82.73 people per square mile. The most prevalent race in Griswold is white, which represent 96.28% of the total population.