CO-01 elected a Democrat in 2024.

D+55.0 on 345,735 certified votes. Below: the 2024 result and this district's margin across every cycle on record.

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CO-01 — 2024 result

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

Democratic (D)

264,694

76.6%

Republican (R)

74,598

21.6%

All others

6,443

1.9%

Margin

D+55.0

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Margin history

CO-01 across every cycle on record. Each year links to its district page.

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Year	Won	Margin	Votes
2024	D	+55.0%	345,735
2022	D	+62.8%	282,616
2020	D	+50.1%	450,290
2018	D	+50.8%	369,693
2016	D	+40.2%	379,036
2014	D	+36.8%	278,494
2012	D	+41.5%	348,210
2010	D	+38.7%	207,751
2008	D	+48.2%	283,246
2006	D	+79.8%	162,271
2004	D	+49.2%	240,929
2002	D	+36.7%	168,582
2000	D	+41.4%	206,434
1998	D	+36.8%	174,305
1996	D	+16.7%	197,839
1994	D	+20.1%	155,255
1992	D	+37.7%	227,531
1990	D	+27.4%	128,978
1988	D	+39.9%	191,509
1986	D	+36.7%	155,208
1984	D	+25.7%	203,873
1982	D	+22.8%	157,597
1980	D	+22.0%	179,622
1978	D	+24.4%	134,630
1976	D	+7.1%	193,610