Indiana sent 7 Democrats and 4 Republicans to the US House in 1978.

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

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Indiana — 1978 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
IN-01	D	+60.9%	Adam Benjamin JR	90,170
IN-02	D	+20.3%	Floyd J Fithian	145,778
IN-03	D	+12.2%	John Brademas	115,862
IN-04	R	−30.6%	Dan Quayle	125,117
IN-05	R	−35.2%	Elwood H Hillis	140,429
IN-06	D	+4.5%	David W Evans	127,282
IN-07	R	−12.6%	John T Myers	154,424
IN-08	R	−4.0%	H Joel Deckard	159,673
IN-09	D	+31.3%	Lee H Hamilton	151,945
IN-10	D	+13.3%	Philip R Sharp	130,742
IN-11	D	+14.6%	Andrew Jacobs JR	107,441