Representative history of the Ohio House of Representatives

The electoral history of each district in the Ohio House of Representatives can be traced from 1966 to the present.

Originally,

In 1903, at the urging of U.S. Senator Mark Hanna, who led the state's politically dominant Republican political machine, Ohio voters amended the state constitution to award each county one representative. The remaining representatives were apportioned to the counties on the basis of population. This provision later became known as the "Hanna amendment".

In June 1964, the Supreme Court of the United States ruled in Reynolds v. Sims, 377 U.S. 533 (1964) that state legislature districts had to be roughly equal in population. A case challenging the "Hanna amendment" reached the Supreme Court at about the same time as Reynolds v. Sims. On June 22, 1964, the Supreme Court held Ohio's method for apportioning representatives (but not state senators) to be in violation of the Constitution per the decision in Reynolds v. Sims. On remand, the United States District Court for the Northern District of Ohio ordered the state legislature to adopt a new apportionment scheme to comply with the holding in Nolan v. Rhodes.

Elections under the new apportionment scheme were first held in November 1966, for terms to begin per the Ohio constitution on the first day in January 1967.

The 1st District has always been based in Wayne County and now consists of the entire county. It is one-third of the 27th Senate District. It has a Cook PVI of R+9.

The 2nd District has always been based in Mansfield and now consists of all of Richland County. It is one-third of the 22nd Senate District. It has a Cook PVI of R+5.

Current U.S. Senator Sherrod Brown represented the district from 1975 to 1982.

The 3rd District has always been based in Wood County and now consists of the entire county. It is one-third of the 2nd Senate District. It has a Cook PVI of R+1.

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