# Iowa's 15th Senate district

The 15th District of the Iowa Senate is located in central Iowa, and is currently composed of part of the city of Des Moines in Polk County.

## Current elected officials

Tony Bisignano is the senator currently representing the 15th District.
The area of the 15th District contains two Iowa House of Representatives districts:
* The 29th District (represented by Brian Meyer)
* The 30th District (represented by Megan Srinivas)
The district is also located in Iowa's 3rd congressional district, which is represented by U.S. Representative Zach Nunn.

## List of representatives

| Representative | Party | Dates | Residence | Notes |
| Thomas Hart Benton | Democrat | 1846-1847 | Dubuque, Iowa | |
| Theophilus Crawford | Democrat | 1846-1847 | Dyersville, Iowa | |
| John G. Shields | Democrat | 1848-1951 | Dubuque County | |
| Warner Lewis | Democrat | 1850-1851 | Dubuque County | |
| Jefferson David Hillis | Whig | 1852-1855 | Marion County | |
| James Latimer Hogin | Republican | 1856-1857 | Sigourney, Iowa | |
| Oliver P. Sherraden | Republican | 1858-1859 | Richland, Iowa | |
| William B. Lewis | Republican | 1860-1863 | Washington County | |
| John Abbott Parvin | Republican | 1864-1867 | Muscatine, Iowa | |
| Granville G. Bennett | Republican | 1868-1871 | Washington, Iowa | |
| Joseph Decker Miles | Republican | 1872-1875 | Washington County | |
| William Wilson | Democrat | 1876-1877 | Washington, Iowa | |
| Thomas R. Gilmore | Republican | 1878-1879 | Mahaska County | |
| John Kelly Johnson | Republican | 1880-1883 | Oskaloosa, Iowa | |
| Edward R. Cassatt | Democrat | 1884-1891 | Marion County | |
| Theodore Bolivar Perry | Democrat | 1892-1895 | Albia, Iowa | |
| Samuel Druet | Republican | 1896-1899 | Marysville, Iowa | |
| Frederick Townsend | Democrat | 1900-1903 | Albia, Iowa | |
| James L. Warren | Republican | 1904-1908 | Marion County | |
| John Thomas Clarkson | Democrat | 1909-1916 | Albia, Iowa | |
| John Rees Price | Republican | 1917-1924 | Albia, Iowa | |
| William Alexander Clark | Republican | 1925-1932 | Marion County | |
| Carl F. Ashenbrenner | Democrat | 1933-1936 | Pella, Iowa | |
| Hugh W. Lundy | Republican | 1937-1944 | Albia, Iowa | |
| Tunis H. Klein | Democrat | 1945-1948 | Pella, Iowa | |
| Francis M. Roberts | Democrat | 1949-1952 | Marion County | |
| Leon N. Miller | Democrat | 1953-1956 | Knoxville, Iowa | |
| Carroll Price | Republican | 1957-1962 | Knoxville, Iowa | |
| Vera H. Shivvers | Republican | 1963-1964 | Marion County | |
| Gilbert E. Klefstad | Democrat | 1965-1966 | Pottawattamie | |
| Joseph W. Cassidy | Democrat | 1967-1968 | Scott | |
| Roger W. Jepsen | Republican | 1967-1968 | Davenport, Iowa | Beginning with the 62nd General Assembly, Iowa implemented a temporary measure to meet the requirements of Reynolds v. Sims. Under this plan, each senate district received one Senator except for 7 major cities in Iowa which received additional senators based on population. Senate District 15 in Davenport had two senators until 1970. |
| Edward E. Nicholson | Republican | 1969-1970 | Davenport, Iowa | |
| Harold A. Thordsen | Republican | 1969-1970 | Davenport, Iowa | |
| C. Joseph Coleman | Democrat | 1971-1972 | Clare, Iowa | |
| Ralph Wilson Potter | Republican | 1973-1974 | Marion, Iowa | |
| Steve Sovern | Democrat | 1975-1976 | Marion, Iowa | |
| Robert Rush | Democrat | 1977-1982 | Cedar Rapids, Iowa | |
| Arthur L. Gratias | Republican | 1983-1986 | Nora Springs, Iowa | |
| Kenneth Daniel Scott | Democrat | 1987-1990 | Mason City, Iowa | |
| Allen Borlaug | Republican | 1991-1998 | Chickasaw County, Iowa | |
| Betty A. Soukup | Democrat | 1999-2002 | Chickasaw County, Iowa | |
| Robert E. Dvorsky | Democrat | 2003-2012 | Coralville, Iowa | |
| Dennis H. Black | Democrat | 2013-2014 | Lynnville, Iowa | |
| Chaz Allen | Democrat | 2015-2018 | Newton, Iowa | |
| Zach Nunn | Republican | 2019-2022 | Bondurant, Iowa | |
| Tony Bisignano | Democrat | 2023-present | Des Moines, Iowa |

## Historical district boundaries

Source:
| Description | Years effective | Notes |
| Black Hawk County Buchanan County Clayton County Delaware County Dubuque County Fayette County | 1846-1849 | From 1846 to 1857, district numbering was not utilized by the Iowa State Legislature. This convention was added with the passing of the 1857 Iowa Constitution. Numbering of districts pre-1857 is done as a matter of historic convenience. |
| Allamakee Black Hawk County Buchanan County Clayton County Delaware County Dubuque County Fayette County Winneshiek County | 1850-1851 | |
| Madison County Marion County Warren County | 1852-1855 | |
| Keokuk County | 1856-1859 | |
| Washington County | 1860-1863 | |
| Muscatine County | 1864-1867 | |
| Washington County | 1868-1873 | |
| Lousia County Washington County | 1874-1877 | |
| Louisa County | 1878-1883 | |
| Marion County | 1884-1887 | |
| Marion County Monroe County | 1888-1962 | |
| Pottawattamie County | 1963-1966 | |
| Scott County | 1967-1970 | Beginning with the 62nd General Assembly, Iowa implemented a temporary measure to meet the requirements of Reynolds v. Sims. Under this plan, each senate district received one senator, except for seven major cities, which received additional senators based on population. Senate District 15 in Davenport had two senators until 1970. |
| Calhoun County (partial) Webster County | 1971-1972 | In 1970, the Iowa Legislature passed an amendment to the Iowa Constitution setting forth the rules for legislative redistricting in order to abide by the rules established by the Reynolds v. Sims Supreme Court case. The first reapportionment map created by the Republican controlled legislature was deemed unconstitutional, but was still used for the 1970 election. |
| Linn County (partial) | 1973-1982 | |
| Cerro Gordo County (partial) Chickasaw County (partial) Floyd County Howard County Mitchell County | 1983-1992 | |
| Chickasaw County Floyd County Howard County Mitchell County (partial) Winneshiek County | 1993-2002 | |
| Johnson County (partial) Big Grove Township Cedar Township Clear Creek Township Graham Township Hardin Township Jefferson Township Madison Township Monroe Township Newport Township Oxford Township Penn Township Coralville Iowa City (partial) Western neighborhoods around US-218 North Liberty Oxford Shueyville Solon Swisher Tiffin Linn County (partial) Bertram Township Brown Township Buffalo Township College Township Franklin Township Linn Township Marion Township (partial) Region south of Marion and west of US-151 Putnam Township Bertram Ely Lisbon Mount Vernon Springville | 2003-2012 | |
| Jasper County (partial) Excluding Elk Creek Township Fairview Township Lynn Grove Township Palo Alto Township Lynnville Monroe Reasnor Sully Polk County (partial) Beaver Township Camp Township Clay Township Elkhart Township Franklin Township Four Mile Township Washington Township Altoona Bondurant Carlisle (partial) Northern areas formerly part of Fourmile Township Elkhart Mitchellville Runnells | |
| Polk County (partial) Des Moines (partial) | 2023-present |