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1984 Delaware Gubernatorial Election

Delaware · 2 candidates · See every 1984 Governor race

Who won the 1984 Delaware Gubernatorial Election?

Mike Castle won the 1984 Delaware Gubernatorial Election. Mike Castle received 135,250 popular votes (55.53%). The main challenger was William T. Quillen (44.47%).

See the full head-to-head between Castle and Quillen

Castle +11.1 pts · won by 26,935 votes
Mike CastleRepublicanWINNER55.53%
135,250 votes
William T. QuillenDemocratic44.47%
108,315 votes
Popular-vote totals for governor elections are compiled from official state results (via Wikipedia); Louisiana shows the decisive round of its jungle primary.

Data last verified July 28, 2026.