Colorado's 21st Senate district

Colorado's 21st Senate district is one of 35 districts in the Colorado Senate. It is represented by represented by Democrat Dafna Michaelson Jenet who was selected by a vacancy committee in August 2023 to succeed Democrat Dominick Moreno.^[3]

Colorado's 21st State Senate district
From 2022 onward From 2012 to 2022
Senator	Dafna Michaelson Jenet D–Commerce City
Registration	28.7% Democratic 18.5% Republican 49.8% No party preference
Demographics	39% White 3% Black 53% Hispanic 3% Asian 2% Other
Population (2018)	164,130[1]
Registered voters	90,324[2]

Geography

District 21 covers the immediate northern suburbs of Denver in Adams County, including Commerce City, Federal Heights, Berkley, Derby, Sherrelwood, Twin Lakes, Welby, parts of Shaw Heights and Westminster, and the eastern tip of Arvada.^[4]

The district is located entirely within Colorado's 7th congressional district, and overlaps with the 30th, 31st, 32nd, 34th, and 35th districts of the Colorado House of Representatives.^[5]

Recent election results

Colorado state senators are elected to staggered four-year terms; under normal circumstances, the 21st district holds elections in presidential years.

2020

2020 Colorado State Senate election, District 21^[6]

Party		Candidate	Votes	%
	Democratic	Dominick Moreno (incumbent)	41,438	63.5
	Republican	Martin Mendez	23,769	36.5
Total votes			65,207	100
	Democratic hold

2016

2016 Colorado State Senate election, District 21^[7]

Party		Candidate	Votes	%
	Democratic	Dominick Moreno	38,428	100
Total votes			38,428	100
	Democratic hold

2012

2012 Colorado State Senate election, District 21^[8]

Party		Candidate	Votes	%
	Democratic	Jessie Ulibarri	30,308	64.9
	Republican	Francine Bigelow	16,373	35.1
Total votes			46,681	100
	Democratic hold

Federal and statewide results

Year	Office	Results[9]
2020	President	Biden 62.2 – 34.8%
2018	Governor	Polis 60.5 – 33.9%
2016	President	Clinton 56.0 – 35.3%
2014	Senate	Udall 54.1 – 37.5%
	Governor	Hickenlooper 56.0 – 37.6%
2012	President	Obama 64.5 – 32.7%