New Milford is a borough in Susquehanna County, Pennsylvania, United States. The population was 868 at the 2010 census. Children living in New Milford are served by the schools in the Blue Ridge School District, including Blue Ridge High School.GeographyNew Milford is located at.According to the United States Census Bureau, the borough has a total area of 1.0sqmi, all of it land.HistoryThe borough of New Milford was formed from part of New Milford Township in December 1859.DemographicsAs of the census of 2010, there were 868 people, 379 households, and 232 families residing in the borough. The population density was 868 people per square mile (339.1/km2). There were 421 housing units at an average density of 421 per square mile (164.5/km2). The racial makeup of the borough was 97.2% White, 1% African American, 0.2% Asian, 0.8% from other races, and 0.7% from two or more races. Hispanic or Latino of any race were 1.5% of the population.