There are 218,725 households out of which 35.30% have children under the age of 18 living with them, 61.20% are married couples living together, 8.80% have a female householder with no husband present, and 26.40% are non-families. 21.50% of all households are made up of individuals and 8.10% have someone living alone who is 65 years of age or older. The average household size is 2.69 and the average family size is 3.17.
In the county, the population is spread out with 25.70% under the age of 18, 7.00% from 18 to 24, 30.70% from 25 to 44, 24.30% from 45 to 64, and 12.40% who are 65 years of age or older. The median age is 38 years. For every 100 females there are 96.30 males. For every 100 females age 18 and over, there are 93.40 males.
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