Missouri sent 4 Democrats and 5 Republicans to the US House in 2004.

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

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Missouri — 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
MO-01	D	+52.5%	Wm Lacy Clay	283,771
MO-02	R	−32.4%	W Todd Akin	349,867
MO-03	D	+7.7%	Russ Carnahan	277,916
MO-04	D	+33.8%	Ike Skelton	288,226
MO-05	D	+13.1%	Emanuel Cleaver II	293,025
MO-06	R	−29.1%	Sam Graves	307,855
MO-07	R	−42.2%	Roy Blunt	298,205
MO-08	R	−45.6%	Jo Ann Emerson	268,711
MO-09	R	−30.8%	Kenny C Hulshof	299,447