The 1st district of the Iowa Senate, located in Northwestern Iowa, is currently composed of part of Woodbury County. It is represented by Catelin Drey, who won an August 2025 special election to succeed Republican Rocky De Witt. On September 15, 2025, she was sworn in by Iowa Supreme Court Justice Matthew McDermott.
List of representatives
Source:
Representative Party Dates Residence Notes Democratic1846–1848Fort Madison Whig1846–1850Summittville Democratic1848–1852Fort Madison Democratic1850–1852West Point Democratic1852–1855Keokuk Democratic1852–1854 Democratic1854–1856 Democratic1852–1854Fort Madison Democratic1854–1858Harrison Township Democratic1854–1858Fort Madison Democratic1858–1860 Republican1858–1862Keokuk Democratic1860–1862Fort Madison Democratic1862–1866Fort Madison Republican1862–1866Keokuk Democratic1866–1870 Democratic1866–1870 Democratic1870–1874Harrison Township Republican1874–1878Keokuk Democratic1878–1882Keokuk Republican1882–1886Keokuk Democratic1886–1888Fort Madison Democratic1888–1894Fort Madison Democratic1894–1898Lee County Democratic1898–1907Keokuk Democratic1907–1915Keokuk Republican1915–1923Fort Madison Democratic1923–1927West Point Republican1927–1935Fort Madison Democratic1935–1937Belfast Republican1937–1955Keokuk Democratic1955–1959Keokuk Democratic1959–1963Keokuk Republican1963–1969Wever Republican1969–1971Keokuk Republican1971–1983Hull Democratic1983–1987Sioux City Democratic1987–1995Sioux City Democratic1995–2003Sioux City Democratic2003–2011Sioux City Republican2011–2013Sioux City Republican2013–2015Ocheyedan Independent2015–2019 Republican2019–2021Spirit Lake Republican2021–2023Spirit Lake Republican2023–2025Lawton Democratic2025–presentSioux City
Election results
2018
Recent election results from statewide races Year Office Results2008 PresidentObama 54–44%2012 PresidentObama 57–43%2016 PresidentTrump 50–44% SenateGrassley 57–38%2018 GovernorReynolds 50–48% Attorney GeneralMiller 76–24% Secretary of StateDeJear 49.0–48.6% TreasurerFitzgerald 55–43% AuditorSand 56–41%2020 PresidentTrump 50–48% SenateGreenfield 48.4–47.6%2022 SenateGrassley 57–42% GovernorReynolds 60–37% Attorney GeneralBird 52–48% Secretary of StatePate 59–41% TreasurerSmith 54–46% AuditorHalbur 51–49%2024 PresidentTrump 55–43%
Historical district boundaries
Source:
Map Description Years effective NotesLee County1846–1857From 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.Lee County1858–1970Plymouth County Sioux County Lyon County (part)1971–1972In 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.Plymouth County (part) Sioux County (part)
Lyon County (part)1973–1982Woodbury County (part)1983–1992Woodbury County (part)1993–2002Woodbury County (part) Sioux City (North Half)2003–2012Lyon County
Osceola County
Dickinson County
Clay County
Palo Alto County2013–2022Woodbury County (part) Sioux City (North Half) Concord Township Banner Township Lawton2023–present
See also Iowa General Assembly Iowa Senate
References