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Colorado Population News Articles

Population Density

Historic & Projected Growth

Population by County


POPULATION DENSITY

People per square mile, 2010:   48.5

People per square mile, 2020:   55.7


HISTORIC & PROJECTED GROWTH 1790 TO 2040

Year
Population
1790
0
1800
0
1810
0
1820
0
1830
0
1840
0
1850
0
1860
34,277
1870
39,864
1880
194,327
1890
413,249
1900
539,700
1910
799,024
1920
939,629
1930
1,035,791
1940
1,123,296
1950
1,325,089
1960
1,753,947
1970
2,209,596
1980
2,889,735
1990
3,294,394
2000
4,301,261
2010
5,029,196
2020
5,773,714
2030
6,766,983
2040
7,692,907

 

SOURCE: U.S. Bureau of the Census & Weldon Cooper Center, Demographics Research Group
(The Census Bureau and Weldon Cooper Center have not yet provided updated State projections to reflect 2020 census numbers.)


Population by County

Census 2020 Population
Census 2010 Population
Change
from 2010
Percent Change
COLORADO
5,773,714
5,029,196
744,518
12.89%
Adams County
519,572
441,603
77,969
15.01%
Alamosa County
16,376
15,445
931
5.69%
Arapahoe County
655,070
572,003
83,067
12.68%
Archuleta County
13,359
12,084
1,275
9.54%
Baca County
3,506
3,788
-282
-8.04%
Bent County
5,650
6,499
-849
-15.03%
Boulder County
330,758
294,567
36,191
10.94%
Broomfield County
74,112
55,889
18,223
24.59%
Chaffee County
19,476
17,809
1,667
8.56%
Cheyenne County
1,748
1,836
-88
-5.03%
Clear Creek County
9,397
9,088
309
3.29%
Conejos County
7,461
8,256
-795
-10.66%
Costilla County
3,499
3,524
-25
-0.71%
Crowley County
5,922
5,823
99
1.67%
Custer County
4,704
4,255
449
9.55%
Delta County
31,196
30,952
244
0.78%
Denver County
715,522
600,158
115,364
16.12%
Dolores County
2,326
2,064
262
11.26%
Douglas County
357,978
285,465
72,513
20.26%
Eagle County
55,731
52,197
3,534
6.34%
Elbert County
26,062
23,086
2,976
11.42%
El Paso County
730,395
622,263
108,132
14.80%
Fremont County
48,939
46,824
2,115
4.32%
Garfield County
61,685
56,389
5,296
8.59%
Gilpin County
5,808
5,441
367
6.32%
Grand County
15,717
14,843
874
5.56%
Gunnison County
16,918
15,324
1,594
9.42%
Hinsdale County
788
843
-55
-6.98%
Huerfano County
6,820
6,711
109
1.60%
Jackson County
1,379
1,394
-15
-1.09%
Jefferson County
582,910
534,543
48,367
8.30%
Kiowa County
1,446
1,398
48
3.32%
Kit Carson County
7,087
8,270
-1,183
-16.69%
Lake County
7,436
7,310
126
1.69%
La Plata County
55,638
51,334
4,304
7.74%
Larimer County
359,066
299,630
59,436
16.55%
Las Animas County
14,555
15,507
-952
-6.54%
Lincoln County
5,675
5,467
208
3.67%
Logan County
21,528
22,709
-1,181
-5.49%
Mesa County
155,703
146,723
8,980
5.77%
Mineral County
865
712
153
17.69%
Moffat County
13,292
13,795
-503
-3.78%
Montezuma County
25,849
25,535
314
1.21%
Montrose County
42,679
41,276
1,403
3.29%
Morgan County
29,111
28,159
952
3.27%
Otero County
18,690
18,831
-141
-0.75%
Ouray County
4,874
4,436
438
8.99%
Park County
17,390
16,206
1,184
6.81%
Phillips County
4,530
4,442
88
1.94%
Pitkin County
17,358
17,148
210
1.21%
Prowers County
11,999
12,551
-552
-4.60%
Pueblo County
168,162
159,063
9,099
5.41%
Rio Blanco County
6,529
6,666
-137
-2.10%
Rio Grande County
11,539
11,982
-443
-3.84%
Routt County
24,829
23,509
1,320
5.32%
Saguache County
6,368
6,108
260
4.08%
San Juan County
705
699
6
0.85%
San Miguel County
8,072
7,359
713
8.83%
Sedgwick County
2,404
2,379
25
1.04%
Summit County
31,055
27,994
3,061
9.86%
Teller County
24,710
23,350
1,360
5.50%
Washington County
4,817
4,814
3
0.06%
Weld County
328,981
252,825
76,156
23.15%
Yuma County
9,988
10,043
-55
-0.55%

SOURCE: U.S. Bureau of the Census


Colorado Population News Articles

Air on Colorado’s Front Range was more polluted than usual this summer—and wildfires were not to blame – Sept 26, 2024

Is Boulder the best place to weather climate change? No, but it’s not the worst. – Sept 26, 2024

Thousands of abandoned mines in Colorado are leaking toxic water, but Congress finally has a solution in sight – Sept 25, 2024

Colorado town claims it has slashed panhandling and homelessness by erecting sign with blunt three-word message – Sept 23, 2024

Cowboys and conservationists team up to protect Colorado lands – Sept 19, 2024

Venezuela’s political unrest could mean more immigrants in Denver – July 29, 2024

Climate change is behind rising metal and acid pollution in Colorado’s mountain rivers – July 29, 2024

Denver and northern Front Range fail to meet another federal air quality benchmark – July 26, 2024

Colorado group wants to protect public lands from over-crowding – July 16, 2024

Climate change is making Colorado heat waves more likely — and more likely to be extreme – July 11, 2024

Thousands Expected to Move to This Surprising Colorado Town – July 2, 2024

New climate report released for Colorado; state warmed by 1.5 degrees – Jan 9, 2024

Denver’s migrant influx soars to highest per capita in the nation as city cleans up encampment, Democrats demand federal help – Jan 3, 2024

Colorado population growth bouncing back, but not as much as forecast – Dec 27, 2023

Colorado sets new regulations on gas-powered lawn tools. Clean air advocates say they don’t go far enough – Dec 15, 2023

City of Boulder Releases Three Emissions Inventories, Pointing to Electrification, Transportation and Systems Change as Continued Areas of Focus for Climate Efforts – Dec 14, 2023

Colorado ranks dead last for housing competitiveness: report – Dec 12, 2023

40 million people share the shrinking Colorado River. Here’s how that water gets divvied up. – August 14, 2023

Colorado’s Next Big Climate Solution Is Reducing Industry Emissions – August 13, 2023

An arts oasis on Colorado’s high plains is reckoning with changing climates of all kinds – August 11, 2023

Environmental Groups Ask to Join EPA Fight Against Colorado Effort to Hide Air-Pollution Data – August 9, 2023

Colorado pays tens of millions to cover health insurance of undocumented immigrants in inaugural year of operation – July 27, 2023

Colorado’s drought is back after only a short reprieve – July 26, 2023

As Drought Hits Farms, Investors Lay Claim to Colorado Water – August 10, 2022

Charts that explain why it’s so hard to cut Colorado ozone – August 29, 2022

Microplastics are seemingly everywhere — including Colorado’s snowpack – July 31, 2022

Officially, heat deaths are not very common in Colorado. The reality is more complicated. – August 1, 2022

Crime & Housing Among Factors Dragging Mile High City Down On List Of Best Places To Live – May 17, 2022

Green Lawns Of Summer Likely To Fade In Colorado – May 10, 2022

How Colorado’s changing climate is putting children’s health at risk – May 12, 2022

Summer wildfires in Pacific Northwest affecting Colorado’s carbon monoxide levels, scientists say – May 13, 2022

It’s been unusually windy this spring. Here’s why you should care – May 12, 2022

Race against Climate Change and Water Stress in Colorado – January 20, 2022

Many people on the Front Range depend on water from the Denver Basin. But the underground supply isn’t infinite – January 19, 2022

Colorado looks to expand building codes as climate change increases risk of wildfires – January 19, 2022

High temperatures drove Colorado Springs bad air days in 2021 – December 29, 2021

Denver is experiencing an ‘extreme’ drought. What does that mean, exactly? – December 16, 2021

Environmentalists want stronger transportation-planning rule as officials tweak proposal – October 22, 2021

A Megadrought Is Hurting Colorado Farmers – October 4, 2021

People are flocking to Colorado for the great outdoors, but the air pollution is so bad, it’s forcing many to stay inside – October 2, 2021

Colorado’s glaciers continue to shrink with hotter summers – September 27, 2021

Fastest-growing counties in Colorado – September 23, 2021

Hazy Skies Over Downtown Denver Could Become A Regular Thing During The Summer – August 5, 2021

CU Boulder study finds main cause of tree deaths in Colorado’s subalpine forests is hot, dry summers – August 4, 2021

As Colorado drought cuts hay crop, cattle ranchers face decision about culling their herds – July 26, 2021

Colorado Springs home prices set more record highs; average price tops $500K – July 16, 2021

Trout habitat will be lost in western Colorado drought – July 8, 2021

Study: Mass bird deaths in Colorado due to toxic gases from wildfires – April 22, 2021

Colorado’s flood risks are on the rise, and consumers will pay for it  – April 13, 2021

Colorado Springs, Aurora approved to perform exploratory drilling for new reservoir in the White River National Forest – April 5, 2021

Colorado’s big peaks are getting hammered; CFI is here to help – April 3, 2021

Colorado unveils climate plan to cut heat-trapping air pollution by 90% – January 15, 2021

Colorado’s Front Range urban boom may explain spike in traffic deaths – January 12, 2021

Colorado Approves $110M Transportation Electrification Plan – January 12, 2021

In 2020, Colorado Saw One Of Its Driest And Warmest Years Ever Recorded – January 9, 2021

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