Pennsylvania sent 7 Democrats and 12 Republicans to the US House in 2004.

19 districts. Each row shows the winning party, margin, and member elected. Vote counts are the certified district totals.

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Pennsylvania — 2004 House districts

Source: MIT Election Data + Science Lab, US House returns (party-classified by literal ballot party).

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District	Won	Margin	Member elected	Votes
PA-01	D	+72.9%	Robert A Brady	248,585
PA-02	D	+76.1%	Chaka Fattah	287,637
PA-03	R	−20.2%	Phil English	277,264
PA-04	R	−27.2%	Melissa A Hart	323,917
PA-05	R	−88.0%	John E Peterson	219,091
PA-06	R	−2.0%	Jim Gerlach	314,325
PA-07	R	−18.4%	Curt Weldon	334,527
PA-08	R	−12.0%	Michael G Fitzpatrick	331,264
PA-09	R	−39.1%	Bill Shuster	265,107
PA-10	R	−92.8%	Don Sherwood	206,772
PA-11	D	+94.4%	Paul E Kanjorski	181,252
PA-12	D	+100.0%	John P Murtha	204,504
PA-13	D	+14.5%	Allyson Schwartz	308,124
PA-14	D	+100.0%	Michael F Doyle	220,139
PA-15	R	−19.2%	Charles W Dent	291,134
PA-16	R	−29.9%	Joseph R Pitts	285,299
PA-17	D	+20.2%	Tim Holden	291,786
PA-18	R	−25.5%	Tim Murphy	315,314
PA-19	R	−91.5%	Todd Russell Platts	245,094