Iowa's 4th Senate district

The 4th district of the Iowa Senate is located in northwestern Iowa. It is currently composed of Calhoun, Pocahontas, Sac, and Webster counties.

Current elected officials

Tim Kraayenbrink is the senator currently representing the 4th District.
The area of the 4th District contains two Iowa House of Representatives districts:

The 7th District
The 8th District

The district is also located in Iowa's 4th congressional district, which is represented by U.S. Representative Randy Feenstra.

Historical district boundaries

Source:

Map	Description	Years effective	Notes
	Monroe County Wapello 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.
	Lucas County Monroe County Wapello County	1850-1851
	Jefferson County	1852-1855
	Des Moines County	1856-1859
	Appanoose County	1860-1877
	Monroe County Wayne County	1878-1883
	Lucas County Wayne County	1884-1962
	Decatur County Ringgold County Union County	1963-1966
	Clarke County Decatur County Ringgold County Wayne County	1967-1970
	Cerro Gordo Hancock County Winnebago County Wright County Worth 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.
	Emmet County Hancock County Humboldt County Kossuth County, Iowa Palo Alto County Pocahontas County Winnebago County	1973-1982
	Cherokee County Clay County Lyon County O'Brien County Osceola County Sioux County	1983-1992
	Clay County Dickinson County Emmet County Kossuth County Palo Alto County	1993-2002
	Emmet County Humboldt County Kossuth County Palo Alto County Pocahontas County Webster County Deer Creek Township Jackson Township Johnson Township	2003-2012
	Emmet County Hancock County Kossuth County Winnebago County Wright County	2013-2022
	Calhoun County Pocahontas County Sac County Webster County	2023–present