Ohio sent 11 Democrats and 10 Republicans to the US House in 1986.

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

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Ohio — 1986 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	D	+23.5%	Thomas A Luken	146,577
OH-02	R	−41.5%	Willis D Gradison JR	148,509
OH-03	D	+47.3%	Tony P Hall	133,478
OH-04	R	−58.0%	Michael G Oxley	154,068
OH-05	R	−30.1%	Delbert L Latta	156,880
OH-06	R	−42.4%	Bob McEwen	151,338
OH-07	R	−100.0%	Mike Dewine	119,238
OH-08	R	−36.1%	Donald E Lukens	144,670
OH-09	D	+55.0%	Marcy Kaptur	136,289
OH-10	R	−40.9%	Clarence E Miller	151,717
OH-11	D	+47.6%	Dennis E Eckart	144,568
OH-12	R	−46.8%	John R Kasich	160,632
OH-13	D	+25.6%	Donald J Pease	141,064
OH-14	D	+7.4%	Thomas C Sawyer	154,970
OH-15	R	−27.4%	Chalmers P Wylie	153,495
OH-16	R	−52.7%	Ralph Regula	154,845
OH-17	D	+44.5%	James A Traficant JR	156,189
OH-18	D	+100.0%	Douglas Applegate	126,526
OH-19	D	+9.6%	Edward F Feighan	178,557
OH-20	D	+69.7%	Mary Rose Oakar	130,770
OH-21	D	+63.1%	Louis Stokes	122,472