CO-05 elected a Republican in 2018.

R+17.7 on 322,645 certified votes. Below: the 2018 result and this district's margin across every cycle on record.

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CO-05 — 2018 result

Source: MIT Election Data + Science Lab, US House returns (party-classified by literal ballot party).

Democratic (D)

126,848

39.3%

Republican (R)

184,002

57.0%

All others

11,795

3.7%

Margin

R+17.7

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Margin history

CO-05 across every cycle on record. Each year links to its district page.

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Year	Won	Margin	Votes
2024	R	−13.8%	362,085
2022	R	−15.7%	277,964
2020	R	−20.2%	432,407
2018	R	−17.7%	322,645
2016	R	−31.4%	361,993
2014	R	−19.6%	262,855
2012	R	−65.0%	307,231
2010	R	−36.5%	232,434
2008	R	−23.0%	305,142
2006	R	−19.3%	206,756
2004	R	−43.5%	274,058
2002	R	−44.7%	184,677
2000	R	−82.7%	306,309
1998	R	−46.8%	214,270
1996	R	−43.9%	262,465
1994	R	−100.0%	138,674
1992	R	−45.4%	243,415
1990	R	−36.4%	192,277
1988	R	−50.3%	241,728
1986	R	−39.5%	173,641
1984	R	−57.2%	208,242
1982	R	−19.1%	141,871
1980	R	−47.1%	244,900
1978	R	−25.4%	153,780
1976	R	−32.9%	190,851