 The median home cost in Foster township is $82,300.In the township the population was spread out, with 24.7% under the age of 18, 6.1% from 18 to 24, 28.9% from 25 to 44, 23.1% from 45 to 64, and 17.2% who were 65 years of age or older.The median age was 40 years.