As of the census of 2000, there were 7,405 people, 2,791 households, and 2,121 families living in the township. The population density was 295.4 people per square mile. There were 3,057 housing units at an average density of 121.9/sq mi. The racial makeup of the township was 98.58% White, 0.15% African American, 0.11% Native American, 0.12% Asian, 0.39% from other races, and 0.65% from two or more races. Hispanic or Latino of any race were 1.13% of the population. There were 2,791 households out of which 35.9% had children under the age of 18 living with them, 63.6% were married couplesliving together, 6.8% had a female householder with no husband present, and 24.0% were non-families. 18.6% of all households were made up of individuals and 6.6% had someone living alone who was 65 years of age or older. The average household size was 2.65 and the average family size was 3.00. In the township the population was spread out with 26.0% under the age of 18, 6.8% from 18 to 24, 32.6% from 25 to 44, 24.6% from 45 to 64, and 10.0% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 100.3 males. For every 100 females age 18 and over, there were 99.2 males. The median income for a household in the township was $45,413, and the median income for a family was $48,430. Males had a median income of $35,779 versus $23,801 for females. The per capita income for the township was $18,602. About 6.0% of families and 7.3% of the population were below the poverty line, including 7.0% of those under age 18 and 8.6% of those age 65 or over.
Education
Lower Windsor Township is served by the Eastern York School District. Students may also attend one of the Commonwealth's public cyber charter schools at no additional cost to the family or student. The local school district pays the Pennsylvania Department of Education set tuition fee to the cyber charter school that the resident student chooses to attend. Cyber Charter school students still have access to all extracurriculars and sports programs at the local public school district. Alternatively, the Commonwealth of Pennsylvania permits parents to home school their children or they may attend a private school.