Manville is a borough in Somerset County, New Jersey, United States. As of the 2010 United States Census, the borough's population was 10,344, reflecting an increase of one person from the 10,343 counted in the 2000 Census, which had in turn declined by 224 from the 10,567 counted in the 1990 Census. Manville was named after the Johns-Manville Corporation, which maintained a large manufacturing facility in the borough for decades.Historically, many of Manville's residents are of Slavic — mostly eastern Polish and western Ukrainian descent — with many businesses and restaurants geared towards the Polish-American community located along Main Street.Manville was formed by an act of the New Jersey Legislature on April 1, 1929, subject to the results of a referendum held on April 18, 1929.