Oregon's 3rd congressional district covers most of Multnomah County, including Gresham, Troutdale, and most of Portland east of the Willamette River (parts of Northwest and Southwest Portland lie in the 1st and 5th districts). It also includes the northeastern part of Clackamas County and all of Hood River County.

The district has been represented by Democrat Earl Blumenauer since a 1996 special election. With a Cook Partisan Voting Index rating of D+22, it is the most Democratic district in Oregon and the third most Democratic district in the Pacific Northwest.

The district was created in 1913, sending its first representative to the 63rd Congress.

Member District home	Party	Years	Cong ess	Electoral history
District established March 4, 1913
Walter Lafferty (Portland)	Republican	March 4, 1913 – March 3, 1915	63rd	Redistricted from the 2nd district and re-elected in 1912. Lost renomination.
Clifton N. McArthur (Portland)	Republican	March 4, 1915 – March 3, 1923	64th 65th 66th 67th	Elected in 1914. Re-elected in 1916. Re-elected in 1918. Re-elected in 1920. Lost re-election.
Elton Watkins (Portland)	Democratic	March 4, 1923 – March 3, 1925	68th	Elected in 1922. Lost re-election.
Maurice E. Crumpacker (Portland)	Republican	March 4, 1925 – July 24, 1927	69th 70th	Elected in 1924. Re-elected in 1926. Died.
Vacant		July 24, 1927 – October 18, 1927	70th
Franklin F. Korell (Portland)	Republican	October 18, 1927 – March 3, 1931	70th 71st	Elected to finish Crumpacker's term. Re-elected in 1928. Lost re-election.
Charles H. Martin (Portland)	Democratic	March 4, 1931 – January 3, 1935	72nd 73rd	Elected in 1930. Re-elected in 1932. Retired to run for governor.
William A. Ekwall (Portland)	Republican	January 3, 1935 – January 3, 1937	74th	Elected in 1934. Lost re-election.
Nan Wood Honeyman (Portland)	Democratic	January 3, 1937 – January 3, 1939	75th	Elected in 1936. Lost re-election.
Homer D. Angell (Portland)	Republican	January 3, 1939 – January 3, 1955	76th 77th 78th 79th 80th 81st 82nd 83rd	Elected in 1938. Re-elected in 1940. Re-elected in 1942. Re-elected in 1944. Re-elected in 1946. Re-elected in 1948. Re-elected in 1950. Re-elected in 1952. Lost renomination.
Edith Green (Portland)	Democratic	January 3, 1955 – December 31, 1974	84th 85th 86th 87th 88th 89th 90th 91st 92nd 93rd	Elected in 1954. Re-elected in 1956. Re-elected in 1958. Re-elected in 1960. Re-elected in 1962. Re-elected in 1964. Re-elected in 1966. Re-elected in 1968. Re-elected in 1970. Re-elected in 1972. Retired and resigned early.
Vacant		December 31, 1974 – January 3, 1975	94th
Robert B. Duncan (Gresham)	Democratic	January 3, 1975 – January 3, 1981	94th 95th 96th	Elected in 1974. Re-elected in 1976. Re-elected in 1978. Lost renomination.
Ron Wyden (Portland)	Democratic	January 3, 1981 – February 5, 1996	97th 98th 99th 100th 101st 102nd 103rd 104th	Elected in 1980. Re-elected in 1982. Re-elected in 1984. Re-elected in 1986. Re-elected in 1988. Re-elected in 1990. Re-elected in 1992. Re-elected in 1994. Resigned when elected U.S. Senator.
Vacant		February 5, 1996 – May 21, 1996	104th
Earl Blumenauer (Portland)	Democratic	May 21, 1996 – present	104th 105th 106th 107th 108th 109th 110th 111th 112th 113th 114th 115th 116th 117th 118th	Elected to finish Wyden's term. Re-elected in 1996. Re-elected in 1998. Re-elected in 2000. Re-elected in 2002. Re-elected in 2004. Re-elected in 2006. Re-elected in 2008. Re-elected in 2010. Re-elected in 2012. Re-elected in 2014. Re-elected in 2016. Re-elected in 2018. Re-elected in 2020. Re-elected in 2022. Retiring at end of term.

Election results from presidential races
Year	Office	Results
2004	President	Kerry 67-33%
2008	President	Obama 71 - 25%
2012	President	Obama 72 - 25%
2016	President	Clinton 71 - 23%
2020	President	Biden 74 - 23%

Sources (official results only):

• Elections History from the Oregon Secretary of State website
• Election Statistics from the website of the Clerk of the United States House of Representatives

1994 United States House election: Oregon District 3

Party		Candidate	Votes	%
	Democratic	Ron Wyden (incumbent)	161,624	72.54
	Republican	Everett Hall	43,211	19.39
	Independent	Mark Brunelle	13,550	6.08
	Libertarian	Gene Nanni	4,164	1.87
		Misc.	273	0.12

A special election was held on May 21, 1996 to fill the vacancy created when incumbent Ron Wyden resigned effective February 5, 1996 after winning a special election to the United States Senate. The winner of the election, Earl Blumenauer, served the remainder of Wyden's two-year term.

1996 United States House special election: Oregon District 3

Party		Candidate	Votes	%
	Democratic	Earl Blumenauer	73,656	68.38
	Republican	Mark Brunelle	26,735	24.82
	Pacific Green	Joe Keating	4,336	4.03
	Socialist	Victoria P. Guillebeau	2,452	2.28
		Misc.	529	0.49

1996 United States House election: Oregon District 3

Party		Candidate	Votes	%
	Democratic	Earl Blumenauer (incumbent)	165,922	66.93
	Republican	Scott Bruun	65,259	26.32
	Pacific Green	Joe Keating	9,274	3.74
	Libertarian	Bruce Alexander Knight	4,474	1.80
	Socialist	Victoria P. Guillebeau	2,449	0.99
		Misc.	531	0.21

1998 United States House election: Oregon District 3

Party		Candidate	Votes	%
	Democratic	Earl Blumenauer (incumbent)	153,889	83.64
	Libertarian	Bruce Alexander Knight	16,930	9.23
	Socialist	Walter F. Brown	10,199	5.56
		Misc.	2,333	1.27

2000 United States House election: Oregon District 3

Party		Candidate	Votes	%
	Democratic	Earl Blumenauer (incumbent)	181,049	66.77
	Republican	Jeffery L. Pollack	64,128	23.65
	Pacific Green	Tre Arrow	15,763	5.81
	Libertarian	Bruce Alexander Knight	4,942	1.821
	Socialist	Walter F. Brown	4,703	1.73
		Misc.	576	0.21

2002 United States House election: Oregon District 3

Party		Candidate	Votes	%
	Democratic	Earl Blumenauer (incumbent)	156,851	66.77
	Republican	Sarah Seale	62,821	26.74
	Socialist	Walter F. Brown	6,538	2.78
	Libertarian	Kevin Jones	4,704	2.00
	Constitution	David Brownlow	3,495	1.49
		Misc.	518	0.22

2004 United States House election: Oregon District 3

Party		Candidate	Votes	%
	Democratic	Earl Blumenauer (incumbent)	245,559	70.86
	Republican	Tami Mars	82,045	23.67
	Socialist	Walter F. Brown	10,678	3.08
	Constitution	Dale Winegarden	7,119	2.05
		Misc.	1,159	0.33

2006 United States House election: Oregon District 3

Party		Candidate	Votes	%
	Democratic	Earl Blumenauer (incumbent)	186,380	73.49
	Republican	Bruce Broussard	59,529	23.47
	Constitution	David Brownlow	7,003	2.76
		Misc.	698	0.28

2008 United States House election: Oregon District 3

Party		Candidate	Votes	%
	Democratic	Earl Blumenauer (incumbent)	254,235	74.54
	Republican	Delia Lopez	71,063	20.84
	Pacific Green	Michael Meo	15,063	4.42
		Misc.	701	0.21

2010 United States House election: Oregon District 3

Party		Candidate	Votes	%
	Democratic	Earl Blumenauer (incumbent)	193,104	70.02
	Republican	Delia Lopez	67,714	24.55
	Libertarian	Jeff Lawrence	8,380	3.04
	Pacific Green	Michael Meo	6,197	2.25
		Misc.	407	0.15

2012 United States House election: Oregon District 3

Party		Candidate	Votes	%
	Democratic	Earl Blumenauer (incumbent)	264,979	74.48
	Republican	Ronald Green	70,235	19.74
	Libertarian	Michael Cline	6,640	1.87
	Pacific Green	Woodrow Broadnax	13,159	3.70
		Misc.	772	0.22

2014 United States House election: Oregon District 3

Party		Candidate	Votes	%
	Democratic	Earl Blumenauer (incumbent)	211,748	73.33
	Republican	James Buchal	57,424	19.89
	Libertarian	Jeffrey J. Langan	6,381	2.21
	Pacific Green	Michael Meo	12,106	4.19
		Misc.	1,089	0.38

2016 United States House election: Oregon District 3

Party		Candidate	Votes	%
	Democratic	Earl Blumenauer (incumbent)	274,687	71.84
	Progressive	David Delk	27,978	7.32
	Independent	David W. Walker	78,154	20.44
		Misc.	1,536	0.40

2018 United States House election: Oregon District 3

Party		Candidate	Votes	%
	Democratic	Earl Blumenauer (incumbent)	279,019	72.6
	Republican	Tom Harrison	76,187	19.8
	Independent	Marc Koller	21,352	5.6
	Libertarian	Gary Dye	5,767	1.5
	Constitution	Michael P. Marsh	1,487	0.4
		Misc.	514	0.1

2020 United States House election: Oregon District 3

Party		Candidate	Votes	%
	Democratic	Earl Blumenauer (incumbent)	343,574	73.0
	Republican	Joanna Harbour	110,570	23.5
	Pacific Green	Alex DiBlasi	8,872	1.9
	Libertarian	Josh Solomon	6,869	1.5
		Misc.	621	0.1

2022 United States House election: Oregon District 3

Party		Candidate	Votes	%
	Democratic	Earl Blumenauer (incumbent)	212,119	69.9
	Republican	Joanna Harbour	79,766	26.3
	Pacific Green	David E Delk	10,982	3.6
	Write-in		467	0.2

Before the 2002 redistricting, the whole of Multnomah County was included in the district; it lost southwest Portland to the 1st and 5th districts, but it gained most of its current portion of Clackamas County.

• Oregon's congressional districts
• List of United States congressional districts

Specific

General

• Martis, Kenneth C. (1989). The Historical Atlas of Political Parties in the United States Congress. New York: Macmillan Publishing Company.
• Martis, Kenneth C. (1982). The Historical Atlas of United States Congressional Districts. New York: Macmillan Publishing Company.
• Congressional Biographical Directory of the United States 1774–present

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