All About Adolescence. Adolescence typically describes the years between ages 13 and 19 and can be considered the transitional stage from childhood to adulthood. However, the physical and psychological changes that occur in adolescence can start earlier, during the preteen or tween years (ages 9 through 12).
Grimes, Iowa - Basic Facts. The City of Grimes had a population of 10,904 as of July 1, 2016. Grimes ranks in the upper quartile for Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Iowa. See peer rankings below.
As of the 2010 Census, the population was 501,226, an increase of 12,177 (+2.5%) from the 489,049 counted in the 2000 Census, As of the 2016 Census estimate, the county's population was 507,945, making it the state's ninth-most populous county, and marking an increase of 1.3% from 2010.