The 4th Utah Senate District is located in Salt Lake County and includes Utah House Districts 36, 37, 40, 44, 45, and 46. The current State Senator representing the 4th district is Jani Iwamoto. Iwamoto was elected to the Utah Senate in 2014 and is up for re-election in 2018. Previous Utah State Senators (District 4) Election results 2014 General Election See also Jani Iwamoto Pat Jones Utah Democratic Party Utah Republican Party Utah Senate References External links Utah Senate District Profiles Official Utah State Senate Page for Jani Iwamoto 04 Salt Lake County, Utah