Indiana's 1st Senate district is one of the fifty districts of the Indiana Senate. The district was originally based around Hammond and parts of surrounding areas. Redistricting passed by the Indiana General Assembly in 2011 shifted the district's boundaries, effective January 2013. The district was changed to include Hammond's 4th, 5th, 6th city districts, the town of Munster, the town of Highland, the west side of the town of Griffith, the north side of the town of Dyer, parts of the town of Schererville, and part of the City of Crown Point.
The district is currently represented by Dan Dernulc, a member of the Republican Party of Indiana. A single term is four years in length. Prior to 1970 State Senators only conducted legislative business every two years.
List of state senators State SenatorPartyYears Electoral historyDan DernulcRepublican2022–PresentDefeated incumbent Michael Griffin.Michael GriffinDemocratic2022Was appointed to finish Frank Mrvan's term.Frank Mrvan JrDemocratic1999–2022Retired at the beginning of 2022.Sandra DempseyRepublican1995-1999Voted in after determined clerk mistakeFrank Mrvan JrDemocratic1979-1994First Elected in 1978William Carl ChristyDemocratic1955, '57, '61, '63, '65, '67, '69, '71-'78Edward Leo ChubinskiDemocratic1951, '53Charles Francis FlemingDemocratic1943, '45, '47Resigned December 1, 1948; no one elected to complete his termElliott Rifenburg ConroyDemocratic1939, '41Raymond C. SohlDemocratic1935, '37Frank C. HolmanDemocratic1931, '33William Franklin HodgesRepublican1923, '25, '27, '29
Historical election results +General 2022PartyCandidateVotes%RepublicanDan Dernulc23,39052.3DemocraticMichael Griffin 21,34047.7Total:44,730Republican gain from Democratic +General 2018PartyCandidateVotes%DemocraticFrank Mrvan Jr29,57863.3RepublicanCharles Kallas17,14436.7Total:46,722 +General 2014PartyCandidateVotes%DemocraticFrank Ed Mrvan Jr.15,53859.7RepublicanKenneth Stevenson10,50640.3Total:26,044 +General 2010PartyCandidate Votes%DemocraticFrank Mrvan Jr.16,47260.3RepublicanDavid Spudic10,84539.7Total:27,317 +General 2006PartyCandidateVotes%DemocraticFrank Mrvan Jr.15,85261.8RepublicanChris Marrow9,79138.2Total:25,643 +General 2002PartyCandidateVotes%DemocraticFrank Mrvan Jr.14,449100Total:14,449 +General 1998PartyCandidateVotes%DemocraticFrank Mrvan Jr.12,73850.9RepublicanSandra Dempsey12,27049.1Total:25,008 +General 1994PartyCandidate1st Vote%Recount Vote%DemocraticFrank Mrvan Jr.13,11450.112,63849.9RepublicanSandra Dempsey13,06049.912,64150.1Total:26,17425,279 +General 1990PartyCandidateVote%DemocraticFrank Mrvan Jr.Unopposed100 +General 1986PartyCandidateVote%DemocraticFrank Mrvan Jr.17,49879.6RepublicanGregory Sanchez4,49420.4Total:21,992 +General 1982PartyCandidateVote%DemocraticFrank Mrvan Jr.22,62381.6RepublicanJohn Drac5,11218.4Total:27,735 +General 1978PartyCandidateVote%DemocraticFrank Mrvan Jr.17,37782.1RepublicanRobert Cantrell3,80217.9Total:21,179 +General 1974PartyCandidateVote%DemocraticWilliam Christy19,64181RepublicanMary Thompson4,61019Total:24,251 +General 1970PartyCandidateVote%DemocraticWilliam Christy87,22963.8RepublicanJoseph Harkin49,56036.2Total:136,789 +General 1966PartyCandidateVote%DemocraticWilliam Christy80,07959.6RepublicanJames Bradford54,24740.4Total:134,326 +General 1962PartyCandidateVote%DemocraticWilliam Christy103,73060.6RepublicanDavid Colosimo67,61039.4Total:171,340 +General 1958PartyCandidateVote%DemocraticWilliam Christy96,02566.8RepublicanCalvin Grubbs47,69733.2Total:143,722 +General 1954PartyCandidateVote%DemocraticWilliam Christy80,25661RepublicanFrank Gullstrom51,47539Total:131,731
+General 1950PartyCandidateVote%DemocraticEdward Chubinski63,86853.9RepublicanThomas Hodges54,66246.1Total:118,530 +General 1946PartyCandidateVote %DemocraticCharles Fleming51,16551.9RepublicanClayton Root47,51748.1Total:98,682 +General 1942PartyCandidateVote%DemocraticCharles Fleming43,89853.2RepublicanHerbert Fisher38,65446.8Total:82,552
+General 1938PartyCandidateVote%DemocraticElliott Conroy56,14154.7RepublicanClayton Root46,54745.3Total:102,688 +General 1934PartyCandidateVote%DemocraticRaymond Sohl42,86652.2RepublicanJames Nedji39,28847.8Total:82,154 +General 1930PartyCandidateVote%DemocraticFrank Holman26,73253RepublicanWilliam Hodges23,74547Total:50,477 +General 1926PartyCandidateVote%RepublicanWilliam Hodges28,948100UnopposedTotal:28,948 +General 1922PartyCandidateVote%DemocraticFrank Martin6,66937RepublicanWilliam Hodges11,31363Total:17,982
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