The 21st District of the Iowa Senate is located in central Iowa, United States, and is currently composed of part of Polk County.

Current elected officials Mike Bousselot is the senator currently representing the 21st District.

The area of the 21st District contains two Iowa House of Representatives districts: The 41st District (represented by Ryan Weldon) The 42nd District (represented by Heather Matson)

The district is also located in Iowa's 3rd congressional district, which is represented by Zach Nunn.

Past senators The district has previously been represented by: Charles Balloun, 1971–1973 Patrick Deluhery, 1983–1992 Maggie Tinsman, 1993–2002 Dennis Black, 2003–2012 Matt McCoy, 2013–2018 Claire Celsi, 2019–present

Historical district boundaries Map Description Years effective NotesJackson County1852–1855From 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.Scott County1856–1859Clinton County1860–1863Warren County1864–1877Scott County1878–1962Johnson County1963–1966Audubon County Dallas County Guthrie County1967–1970Benton County Black Hawk County (partial) Tama County1971–1972Polk County (partial) Story County (partial)1973–1982

Recent election results from statewide races Year Office Results2008 PresidentMcCain 51–47%2012 PresidentRomney 54–46%2016 PresidentTrump 48–43% SenateGrassley 62–34%2018 GovernorHubbell 49.4–48.7% Attorney GeneralMiller 75–25% Secretary of StatePate 51–47% TreasurerFitzgerald 58–39% AuditorSand 51–47%2020 PresidentBiden 49.1–48.6% SenateErnst 49–48%2022 SenateGrassley 50.2–49.7% GovernorReynolds 52–46% Attorney GeneralMiller 55–45% Secretary of StatePate 56–44% TreasurerFitzgerald 56–44% AuditorSand 57–43%2024 PresidentTrump 50–48%

See also Iowa General Assembly Iowa Senate

References