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Iowa State Senate District 31

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Iowa State Senate District 31
Current incumbentWilliam Dotzler Democratic Party
Ethnicity6.6% Black, 6.8% Hispanic[1]
Voting age76.4% age 18 and over
Next electionNovember 6, 2018
Iowa's thirty-first state senate district is represented by Democratic Senator William Dotzler.

As of the 2010 census, a total of 57,942 civilians reside within Iowa's thirty-first state senate district.[2] Iowa state senators represent an average of 60,927 residents. After the 2000 Census, each member represented 58,586 residents.

About the chamber

Members of the Iowa State Senate serve four-year terms and are not subject to term limits. Half of the senate is up for re-election every two years. Iowa legislators assume office the first day of January after their election.


The Iowa Constitution states, "Senators shall be chosen for the term of four years, at the same time and place as representatives; they shall be twenty-five years of age, and possess the qualifications of representatives as to residence and citizenship."[3]


See also: Comparison of state legislative salaries

As of 2013, members of the Iowa legislature are paid $25,000/year. Additionally, legislators receive $135/day per diem tied to the federal rate. Polk County legislators receive $101.25/day.[4]


See also: How vacancies are filled in state legislatures

If a vacancy occurs in the senate, the Governor must call for a special election within five days of the vacancy. If the vacancy happens while the Senate is in session, the Governor can call the election to be held as soon as possible. However, a minimum a 18 day notice is required. All other special elections require a 45 day notice as long there are no school elections scheduled on the same day.[5]



See also: Iowa State Senate elections, 2014

Elections for the office of Iowa State Senate took place in 2014. A primary election took place on June 3, 2014. The general election was held on November 4, 2014. The signature-filing deadline for candidates wishing to run in this election was March 14, 2014. Incumbent Bill Dotzler was unopposed in the Democratic primary and was unchallenged in the general election.[6][7][8][9]


See also: Iowa State Senate elections, 2010

Elections for the office of Iowa State Senate consisted of a primary election on June 8, 2010, and a general election on November 2, 2010. The signature-filing deadline for candidates wishing to run in this election was March 19, 2010. Incumbent Matt McCoy (D) defeated Dave Leach (R) in the general election. Neither candidate faced opposition in their primary.[10][11]

Iowa State Senate, District 31, General Election, 2010
Party Candidate Vote % Votes
     Democratic Green check mark transparent.pngMatt McCoy Incumbent 65.5% 13,385
     Republican Dave Leach 34.5% 7,064
Total Votes 20,449

Campaign contributions

Since 2000, candidates for Iowa State Senate District 31 have raised a total of $1,029,158. Candidates who raised money in contributions earned $79,166 on average. All figures come from Follow the Money.

Campaign contributions, Iowa State Senate District 31
Year Amount Candidates Average
2012 * $42,535 1 $42,535
2010 $101,506 2 $50,753
2008 $39,645 1 $39,645
2006 $350,549 3 $116,850
2004 $23,406 1 $23,406
2002 $466,544 4 $116,636
2000 $4,973 1 $4,973
Total $1,029,158 13 $79,166
* Campaign finance data for 2012 is incomplete for this district.

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