Washington's 10th Congressional District elections, 2012

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Washington's 10th Congressional District

General Election Date
November 6, 2012

Primary Date
August 7, 2012

November 6 Election Winner:
Denny Heck Democratic Party
Incumbent prior to election:
Newly created district

Washington U.S. House Elections
District 1District 2District 3District 4District 5District 6District 7District 8District 9District 10

2012 U.S. Senate Elections

Flag of Washington.png
The 10th congressional district of Washington held an election for the U.S. House of Representatives on November 6, 2012.

Denny Heck (D) was elected.[1]

Candidate Filing Deadline Primary Election General Election
May 18, 2012
August 7, 2012
November 6, 2012

Primary: Washington has a top-two primary system, in which the top two vote-getters, regardless of party, go on to the general election.[2]

Voter registration: Voters were required to register to vote in the primary by July 9, or July 30 in-person for first-time voters.[3] For the general election, voter registration deadlines were October 9, and October 28 for first-time voters.[3]

See also: Washington elections, 2012

Incumbent: This district was added following the 2010 Census.

This was the first election which used new district maps based on 2010 Census data. Washington's 10th congressional district is located in the west central portion of the state, and includes portions of Thurston, Pierce, King, and Mason counties.[4]


Note: Election results were added on election night as races were called. Vote totals were added after official election results had been certified. For more information about Ballotpedia's election coverage plan, click here. If you find any errors in this list, please email: Geoff Pallay.

General election candidates

Democratic Party Denny Heck Green check mark transparent.png
Republican Party Richard Muri

August 7, 2012, primary results

Democratic Party Democratic candidates

Republican Party Republican candidates

Independent Third party candidates

Election results

General election

U.S. House, Washington District 10 General Election, 2012
Party Candidate Vote % Votes
     Democratic Green check mark transparent.pngDenny Heck 58.6% 163,036
     Republican Richard Muri 41.4% 115,381
Total Votes 278,417
Source: Washington Secretary of State "Official Election Results, 2012 General Election"

Race background

Washington's 10th was considered to be Leaning Democratic according to the New York Times race ratings. The 10th is a newly created seat thanks to redistricting. Democrat Denny Heck faced Richard Muri (R) in a Democratic leaning district.[6]

Washington's 10th District was included in the Democratic Congressional Campaign Committee's "Red to Blue List," which identified districts that the organization specifically targeted to flip from Republican to Democratic control.[7]

Impact of redistricting

See also: Redistricting in Washington

Washington gained a congressional seat following the 2010 Census, bringing its total up to 10. The newly redrawn 10th covers most of Thurston County, including Olympia, as well as jutting into Mason County to include Shelton and stretching through the middle of Pierce County to include Puyallup.[8]

The 10th district was created after the 2010 Census. The new district is composed of the following percentages of voters of the old congressional districts.[9][10]

District partisanship

FairVote's Monopoly Politics 2012 study

See also: FairVote's Monopoly Politics 2012

In 2012, FairVote did a study on partisanship in the congressional districts, giving each a percentage ranking (D/R) based on the new 2012 maps and comparing that to the old 2010 maps. Washington's 10th District was created and is more Democratic because of redistricting.[11]

  • 2012: 55D / 45R
  • 2010: District did not exist.

Cook Political Report's PVI

See also: Cook Political Report's Partisan Voter Index

In 2012, Cook Political Report released its updated figures on the Partisan Voter Index, which measures each congressional district's partisanship relative to the rest of the country. Washington's 10th congressional district has a PVI of D+4, which is the 152nd most Democratic district in the country. In 2008, this district was won by Barack Obama (D), 58-42 percent over John McCain (R). In 2004, John Kerry (D) won the district 53-47 percent over George W. Bush (R).[12]

See also