Broomall is a census-designated place (CDP) in Marple Township, Delaware County, Pennsylvania, United States.[3] This crossroads community was renamed for the post office established to honor John Martin Broomall,[4] a 19th-century U.S. congressman, Electoral College member (at Ulysses S. Grant's 1872 presidential election), and Chester Gas Company president from Upper Chichester Township in Delaware County, Pennsylvania.Drummond's Pipet-Aid pipette controller, released in 1972, improved accuracy and pipetting capabilities in laboratories.[8] It is in the eastern part of Marple Township and is bordered to the east by Darby Creek and to the north by Pennsylvania Route 3 (West Chester Pike).PRISM Climate Group, Oregon State U Average monthly temperatures range from 31.9 °F in January to 77.1 °F in July.