The 10 Most Liberal Cities In Colorado For 2025


The most liberal cities in Colorado are Denver and Boulder for 2025 based on Saturday Night Science.

In this article, we will explore some of the most liberal cities in Colorado, where progressive ideas and inclusive attitudes flourish.

If you’re looking to move to Colorado and want to know where the majority of Coloradans lean left, you’ve come to the right place.

Specifically, we wanted to know which cities have the highest number of liberal voters in the Centennial State.

To do so, we analyzed how the people in each city in Colorado with a population greater than 5,000 voted during the last presidential election. The cities with the highest percentage of voters who voted Democrat were named the most liberal cities in the state.


Table Of Contents: Top Ten | Methodology | Summary | Table


Most Liberal Cities In Colorado Map

If you’re wondering, Craig is the most conservative city in Colorado of all those we measured.

And to be clear, we didn’t form this list based on our biases — we relied on the cold hard data. For more on how we ran the numbers, keep on reading. Then, we’ll take a closer look at each of our top 10 most liberal cities in Colorado.

And if you already knew these places were liberal, check out some more reading about Colorado and the most liberal places in the country:

The 10 Most Liberal Places In Colorado For 2025

Denver, CO

Source: Wikipedia User FlickreviewR | CC BY 2.0
Overall SnackAbility

8
/10
Percent Democrat: 79.6%
More on Denver: Data

Boulder, CO

Source: Public domain
Overall SnackAbility

8
/10
Percent Democrat: 77.2%
More on Boulder: Data

Longmont, CO

Source: Wikipedia User Billy Hathorn | CC BY-SA 3.0
Overall SnackAbility

8
/10
Percent Democrat: 77.2%
More on Longmont: Data

Erie, CO

Source: Wikipedia User Bahooka | CC BY-SA 3.0
Overall SnackAbility

7
/10
Percent Democrat: 77.2%
More on Erie: Data

Lafayette, CO

Source: Wikipedia User Jeffrey Beall | CC BY-SA 3.0
Overall SnackAbility

7.5
/10
Percent Democrat: 77.2%
More on Lafayette: Data

Louisville, CO

Source: Public domain
Overall SnackAbility

7.5
/10
Percent Democrat: 77.2%
More on Louisville: Data

Superior, CO

Source: Wikipedia User Pleiades Two | GFDL
Overall SnackAbility

7.5
/10
Percent Democrat: 77.2%
More on Superior: Data

Aspen, CO

Source: Wikipedia User Daniel Case | GFDL
Overall SnackAbility

9
/10
Percent Democrat: 75.2%
More on Aspen: Data

Breckenridge, CO

Source: Wikipedia User Av9 | CC BY-SA 3.0
Overall SnackAbility

7
/10
Percent Democrat: 68.4%
More on Breckenridge: Data

Gypsum, CO

Source: Wikipedia User | CC-BY-2.5
Overall SnackAbility

8.5
/10
Percent Democrat: 63.8%
More on Gypsum: Data

How we determined the most liberal cities in Colorado for 2025

To find the most liberal places in Colorado, we used Saturday Night Science – the argument you’d make at a bar – to find the cities with the most liberals.

Straight forward.

We started by making a list of every city in Colorado over 5,000 people based on the 2019-2023 American Community Survey. That left us with 79 cities and towns.

We then measured the voting record and MIT election data to determine which places lean the most leftward in their allegiances by:

  1. Percentage Of Votes For Democratic President In 2020

Because no voting data exists at the city level, we used county-level election results from the 2020 election. We assigned every city in a county the percentage of votes that went to the Democrats, effectively extending the county’s results to the city level. In cases where larger cities encompassed an entire county, the election outcomes accurately reflected the city’s political landscape.

The winner, Denver, is “The Most liberal City in Colorado For 2025”. The most conservative place in Colorado was Craig.

We updated this article for 2025. This report is our tenth time ranking the most liberal places to live in Colorado.

Summing Up The Liberal Snowflakes in Colorado

Well, there you have it, the places in Colorado that have the highest number of liberals per capita, with Denver ranking as the least conservative in the entire state.

The most liberal cities in Colorado are Denver, Boulder, Longmont, Erie, Lafayette, Louisville, Superior, Aspen, Breckenridge, and Gypsum.

If you’re curious, here are the least liberal cities in Colorado:

  1. Craig
  2. Sterling
  3. Lamar

For more Colorado reading, check out:

Most Liberal Places In Colorado

RankCityPopulation% Liberal
1Denver, CO713,73479.6%
2Boulder, CO106,27477.2%
3Longmont, CO98,95877.2%
4Erie, CO31,92777.2%
5Lafayette, CO30,47177.2%
6Louisville, CO20,78877.2%
7Superior, CO13,13677.2%
8Aspen, CO6,86275.2%
9Breckenridge, CO5,00168.4%
10Gypsum, CO8,48163.8%
11Eagle, CO7,47963.8%
12Avon, CO6,05763.8%
13Gunnison, CO6,71263.7%
14Steamboat Springs, CO13,34162.7%
15Broomfield, CO75,11062.4%
16Aurora, CO390,20161.0%
17Centennial, CO107,38661.0%
18Littleton, CO45,09261.0%
19Englewood, CO33,77461.0%
20Greenwood Village, CO15,48561.0%
21Cherry Hills Village, CO6,36661.0%
22Sheridan, CO6,03161.0%
23Lakewood, CO156,30957.9%
24Arvada, CO122,83557.9%
25Westminster, CO115,54657.9%
26Wheat Ridge, CO32,15857.9%
27Golden, CO20,46757.9%
28Durango, CO19,25757.6%
29Thornton, CO142,87856.7%
30Commerce City, CO64,64056.7%
31Brighton, CO41,19656.7%
32Northglenn, CO37,95356.7%
33Federal Heights, CO14,16056.7%
34Lochbuie, CO8,14256.7%
35Fort Collins, CO169,70556.2%
36Loveland, CO77,35056.2%
37Windsor, CO35,91856.2%
38John, CO18,07556.2%
39Berthoud, CO11,68456.2%
40Wellington, CO11,53856.2%
41Timnath, CO8,00756.2%
42Estes Park, CO5,87956.2%
43Salida, CO5,78652.2%
44Rifle, CO10,46649.9%
45Glenwood Springs, CO10,17149.9%
46Carbondale, CO6,55349.9%
47Pueblo, CO111,51449.6%
48Alamosa, CO9,84748.1%
49Castle Rock, CO76,61445.2%
50Parker, CO60,11545.2%
About Nick Johnson

Nick Johnson earned his masters in Business Administration from the Drucker School At Claremont Graduate University. He has written for 39 publications across the country and ran the media relations department at Movoto, a real estate portal based in San Francisco. He has been featured in over 500 publications as an expert in real estate and as an authority on real estate trends.

Nick's the creator of the HomeSnacks YouTube channel that now has over 260,000 subscribers and is an excellent source to learn about different parts of the country.