Ohio's 1st senatorial district

For United States senators, see List of United States senators from Ohio.

Ohio's 1st senatorial district has historically represented areas located in northwestern Ohio. A multi-county district, it currently comprises the counties Hancock, Hardin, Putnam, Henry, Williams, Defiance, Paulding, and Van Wert and portions of the counties Fulton, Logan, and Auglaize. It encompasses Ohio House districts 81, 82 and 83. It has a Cook PVI of R+25. The current Ohio Senator is Republican Rob McColley. He resides in Napoleon, Ohio, a city located in Henry County.

Ohio's 1st State Senate district
Senator	Rob McColley R–Napoleon
Demographics	88.8% White 2% Black 6.1% Hispanic 1.1% Asian 1.9% Native American 0.1% Hawaiian/Pacific Islander
Population (2020)  • Voting age  • Citizens of voting age	350,009[1] 269,352 264,717

List of senators

Senator	Party	Term	Notes
Howard C. Cook	Republican	January 3, 1967 – December 31, 1974	Cook defeated in 1974 Republican Primary Election[2]
M. Ben Gaeth	Republican	January 4, 1975 – December 31, 1998	Gaeth was not a candidate for re-election in 1998[3]
Lynn Wachtmann	Republican	January 5, 1999 – December 31, 2006	Reached term limit after four terms[4]
Steve Buehrer	Republican	January 2, 2007 – January 15, 2011	Resigned to become administrator of Ohio Bureau of Workers' Compensation[5]
Cliff Hite	Republican	February 2, 2011 – October 17, 2017	Resigned[6][7][8]
Rob McColley	Republican	December 5, 2017 – present	Incumbent