 The average household size was 2.51 and the average family size was 2.89.In the township the population was spread out with 19.7% under the age of 18, 9.7% from 18 to 24, 29.1% from 25 to 44, 28.5% from 45 to 64, and 13.0% who were 65 years of age or older.The median age was 40 years.