According to the 2010 U.S. Census, Summit County’s permanent resident population has aged over the past decade (2000-2010), from a median age of 30.8 years in 2000 to a median age of 36.4 years in 2010. The State Demographer projects that the county's median age will continue to increase over the coming years to 37.7 in 2015 and 38.9 in 2020.
An increase in ethnic diversity in the entire region is also evident in the 2010 Census data. The total non-white population in Summit County (including Hispanic or Latino persons) increased 54.16%, or 1,699 residents over the last decade (from 3,137 people in 2000 to 4,836 people or 17% of the total county population in 2010). Between 2000 and 2010 the Hispanic population (any race) increased approximately 73%, or 1,683 residents. Persons of Hispanic origin (any race) now make up 14.25% of the county's total permanent resident population, as of the 2010 Census. The majority of the county's Hispanic residents (57%) are within two age categories: 32% are less than 18 years of age, and 25% are ages 25 to 34. Over time, ethnic diversification of the permanent resident population is expected to continue.