 About 3.4% of families and 5.6% of the population were below the poverty line, including 2.4% of those under age 18 and 5.1% of those age 65 or over.Cornwall public school is the kindergarten-sixth grade Bingham Memorial School.Middle school students attend Middlebury Union Middle School (MUMS) and high school students who live in Cornwall attend Middlebury Union High School (MUHS) in Middlebury, Vermont.