Havertown is a residential suburban unincorporated community in Haverford Township, Delaware County, Pennsylvania, United States, approximately 9 miles northwest of center of Philadelphia. Widely referred to as "H-Town," Havertown's ZIP Code is 19083. Havertown is notable for being the birthplace of Swell Bubble Gum, which closed its doors in late 2004. Havertown is one of the few towns that have a Superfund site caused by a timber mill that finished telephone poles; the chemical that was used to coat the telephone poles was dumped into the ground. Havertown is also known for its large Irish-American population. Many Irish-Americans still live there today; some even call Havertown the "33rd county", a reference to the 32 counties of Ireland. According to the 2000 US Census, Haverford Twp. ranks in the top 60 of census-recognized municipalities nationwide in percentage of population with Irish ancestry. The neighborhood takes pride in its distinct Irish heritage and is home to many Irish bars and shops. For these reasons the neighborhood remains a very popular destination for Irish immigrants. Of the 51,560 residents, 11,182 noted "Irish" as their first reported ancestry. Havertown’s rich history began with Haverford Township's founding by Welsh Quakers in 1681 on land purchased by William Penn. The town is home to many historic sites, such as the Grange Estate, a mansion that entertained the Revolutionary War figures George Washington and General Lafayette. Nitre Hall, also located within the town’s borders, supplied the United States with over 800,000 pounds of gunpowder during the War of 1812. Other Havertown sites listed on the National Register of Historic Places include the Federal School and Lawrence Cabin. Havertown is home to over thirty outdoor parks and playing fields. The town also provides other recreation facilities including the Haverford Township Free Library, an outdoor skate park, and the Haverford Township Skatium, a multi-use ice rink for Havertown residents. The town is guarded and watched over by the Haverford Township Police Department and is under the protection of five fire companies: Bon Air, Brookline, Llanerch, Manoa, and Oakmont. Havertown is served by the School District of Haverford Township, which has one high school, one middle school, and five elementary schools. A newly-refurbished Elementary school, Chestnutwold Elementary, re-opened its doors early September. It replaced Oakmont Elementary, which is to become home to the district offices. The Haverford High School sports teams are called the "Fords", and have a Model T Ford as mascot. The namesake of Haverford and Havertown is Haverfordwest, Wales, UK.