Ohio sent 11 Democrats and 10 Republicans to the US House in 1990.

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

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Ohio — 1990 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	+2.2%	Charles Luken	164,294
OH-02	R	−28.8%	Willis D Gradison JR	161,162
OH-03	D	+100.0%	Tony P Hall	116,797
OH-04	R	−23.4%	Michael G Oxley	168,364
OH-05	R	−43.3%	Paul E Gillmor	165,920
OH-06	R	−42.4%	Bob McEwen	164,635
OH-07	R	−24.1%	David L Hobson	156,472
OH-08	R	−22.2%	John A Boehner	163,539
OH-09	D	+55.4%	Marcy Kaptur	151,472
OH-10	R	−26.5%	Clarence E Miller	167,665
OH-11	D	+31.4%	Dennis E Eckart	170,305
OH-12	R	−44.0%	John R Kasich	181,279
OH-13	D	+19.7%	Donald J Pease	164,862
OH-14	D	+19.1%	Thomas C Sawyer	164,335
OH-15	R	−18.3%	Chalmers P Wylie	167,919
OH-16	R	−17.8%	Ralph Regula	171,613
OH-17	D	+55.4%	James A Traficant JR	171,406
OH-18	D	+48.6%	Douglas Applegate	162,605
OH-19	D	+29.5%	Edward F Feighan	205,266
OH-20	D	+46.7%	Mary Rose Oaker	149,139
OH-21	D	+59.9%	Louis Stokes	129,249