 The average household size was 2.69 and the average family size was 3.21.A Williams Institute analysis of 2010 census data found there were about 7.4 same-sex couples per 1,000 households in the county.The county's population was distributed as 24.50% under the age of 18, 20.50% from 18 to 24, 28.20% from 25 to 44, 19.10% from 45 to 64, and 7.70% who were 65 years of age or older.