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Pennsylvania's 9th
State Senate district
Pennsylvania's 9th; State Senate district
Senator
	John I. Kane; D–Birmingham Township, Chester County
Population (2021)	252,137

Pennsylvania State Senate District 9 includes parts of Chester County and Delaware County. It is currently represented by Democrat John I. Kane.

District profile

The district includes the following areas:^[1]

Chester County

Delaware County

Senators

Representative^[2]	Party	Years	Note
Richard Thomas	Federalist	1791 – 1793	U.S. Representative from Pennsylvania from 1795 to 1801^[3]
William Ross	Democratic-Republican	1811 – 1815
Charles Fraser	Democratic-Republican	1815 – 1819
Simon Snyder	Democratic-Republican	1817 – 1819	3rd Governor of Pennsylvania from 1808 to 1817^[4]
Robert Willets	Democratic	1819 – 1821
Redmond Conyngham	Federalist	1819 – 1823
Andrew Albright	Republican	1821 – 1822
Lewis Dewart	Democratic-Republican	1821 – 1825
John Ray	Jackson Democrat	1827 – 1829
Samuel Jones Packer	Anti-Mason	1831 – 1833
Isaac Slenker	Democratic	1835 – 1837
Charles Frailey	Democratic	1835 – 1841
Samuel Freeman Headley	Democratic	1841 – 1842
Jefferson Kreider Heckman	Democratic	1843 – 1845
Jacob D. Boas	Whig	1847 – 1849
Conrad Schilp Shimer	Democratic	1851 – 1852
William Fry	Democratic	1853 – 1854
Joseph Laubach	Democratic	1855 – 1857
Elijah Reed Myer	Republican	1859 – 1860	Pennsylvania State Senator for the 17th district from 1857 to 1858^[5]
George Landon	Republican	1859 – 1863
William J. Turrell	Republican	1863 – 1865
William M. Randall	Democratic	1865 – 1873
Thomas Valentine Cooper	Republican	1874 – 1889	Pennsylvania State Representative for Delaware County from 1870 to 1871, 1872 to 1873 and 1901 to 1909. Pennsylvania State Senator for the 5th district from 1873 to 1874^[6]
John Buchanan Robinson	Republican	1889 – 1892	U.S. Representative for Pennsylvania's 6th district from 1891 to 1897^[7]
Jesse Matlack Baker	Republican	1893 – 1897	Pennsylvania State Representative for Delaware County from 1889-1892^[8]
William Cameron Sproul	Republican	1897 – 1919	27th Governor of Pennsylvania from 1919 to 1923^[9]
Richard J. Baldwin	Republican	1919 – 1920	Speaker of the Pennsylvania House of Representatives from 1917 to 1918^[10]
Albert Dutton MacDade	Republican	1921 – 1929
John J. McClure	Republican	1929 – 1937	Found guilty and sentenced to 18 months in prison for vice and rum-running, conviction overturned on appeal^[11]
Weldon Brinton Heyburn	Republican	1937 – 1949
George Watkins	Republican	1949 – 1960	U.S. Representative for Pennsylvania's 7th congressional district from 1965 to 1967. U.S. Representative for Pennsylvania's 9th congressional district from 1967 to 1970^[12]
Clarence D. Bell	Republican	1961 – 2002	Longest serving state senator in Pennsylvania history^[13]
Dominic F. Pileggi	Republican	2002 – 2016	Mayor of Chester, Pennsylvania from 1999 to 2002. Republican leader of the Pennsylvania Senate from 2007 to 2014^[14]
Tom Killion	Republican	2016 – 2020	Pennsylvania State Representative for the 168th district from 2003 to 2016^[15]
John I. Kane	Democratic	2020 – present

Recent election results

PA Senate election, 2020
Party		Candidate	Votes	%
	Democratic	John I. Kane	80,198	51.9
	Republican	Tom Killion (incumbent)	74,173	48.1
Total votes			154,371	100.0
	Democratic gain from Republican

PA Senate election, 2016
Party		Candidate	Votes	%
	Republican	Tom Killion (incumbent)	70,764	51.4
	Democratic	Martin Molloy	67,011	48.6
Total votes			137,775	100.0
	Republican hold

9th Senatorial District special election, 2016
Party		Candidate	Votes	%
	Republican	Tom Killion	41,613	56.9
	Democratic	Martin Molloy	31,533	43.1
Total votes			73,146	100.0
	Republican hold

PA Senate election, 2012
Party		Candidate	Votes	%
	Republican	Dominic F. Pileggi (incumbent)	73,003	55.4
	Democratic	Patricia Worrell	58,769	44.6
Total votes			131,772	100.0
	Republican hold