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 The 15th Utah Senate District is located in Utah County and includes Utah House Districts 58, 59, 60, 61, 62 and 64.
| Name | Party | Term | 
|---|---|---|
| Parley G. Hellewell | Republican | 1999–2006 | 
| LeRay L. McAllister | Republican | 1983–1999 | 
| A. Dean Jeffs | Republican | 1973–1982 | 
| Ernest H. Dean | Democratic | 1967–1972 | 
| Byron R. Rampton | Republican | 1965 | 
| Haven J. Barlow | Republican | 1957–1963 | 
| Rendell N. Mabey | Republican | 1953–1955 | 
| James E. Burns | Democratic | 1949–1951 | 
| Ward C. Holbrook | Democratic | 1945–1947 | 
| William A. Dawson | Republican | 1941–1943 | 
| Lloyd Riley | Republican | 1939 [1] | 
| Ward C. Holbrook | Democratic | 1933–1937 | 
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Republican | Margaret Dayton | 11,365 | 68.6 | ||
| Democratic | Bethanie Newby | 4,169 | 25.2 | ||
| Constitution | Gordon Mela | 1,028 | 6.2 | ||
