 About none of families and 0.9% of the population were below the poverty line, including none of those under age 18 and 2.0% of those age 65 or over.As of the 2000 United States Census there were 5,955 people, 899 households, and 744 families residing in the township.The population density was 278.1 people per square mile (107.4/km²).