Ohio sent 4 Democrats and 12 Republicans to the US House in 2012.

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

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Ohio — 2012 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
OH-01	R	−20.1%	Steve Chabot	349,716
OH-02	R	−17.3%	Brad Wenstrup	331,373
OH-03	D	+41.9%	Joyce Beatty	295,652
OH-04	R	−21.9%	Jim Jordan	312,998
OH-05	R	−18.1%	Robert E Latta	351,878
OH-06	R	−6.5%	Bill Johnson	308,980
OH-07	R	−12.8%	Bob Gibbs	315,812
OH-08	R	−99.2%	John A Boehner	248,316
OH-09	D	+50.0%	Marcy Kaptur	298,164
OH-10	R	−22.1%	Michael R Turner	349,671
OH-11	D	+100.0%	Marcia L Fudge	258,359
OH-12	R	−26.9%	Patrick J Tiberi	368,474
OH-13	D	+45.5%	Tim Ryan	323,612
OH-14	R	−15.3%	David P Joyce	339,894
OH-15	R	−23.1%	Steve Stivers	333,462
OH-16	R	−4.1%	James B Renacci	355,765