Colorado
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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
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
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
The year Colorado’s public lands became more important — and crowded — than ever before – December 28, 2020
Fight Against Colorado’s 2 Largest-Ever Fires Continues, Aided By Snow – October 26, 2020
As Colorado wildfires burn, fears that climate change is causing “multi-level emergency” mount – October 26, 2020
Northern Integrated Supply Project designed to help meet population growth – October 22, 2020
2020 brings highest levels of air pollution the Denver metro area has seen in a decade – October 8, 2020
Officials warn of water pollution as Colorado wildfires rage – October 3, 2020
Increase in human-caused bear deaths raises concerns for forest health – August 30, 2020
‘A total loss’; CPW predicts complete loss of fish population at eastern Colorado reservoir – August 26, 2020
Colorado Wildfires Are Climate Change ‘In The Here And Now’ — And A Sign Of Summers To Come – August 20, 2020
Air Quality – Effects of wildfire smoke on your lungs – August 20, 2020
Johnson Controls installs 308 kW of solar for Gunnison County, Colorado – August 19, 2020
Colorado Health Department’s Water Sampling Finds Water Sources With ‘Forever Chemical’ Levels – July 5, 2020
Colorado’s New Access Rules For State Wildlife Areas Kick In July 1 – June 29, 2020
Parents, educators at Greeley school petition governor to shut down nearby oil and gas wells – June 23, 2020
Colorado lawmakers wanted to tackle the state’s PFAS problem. They are taking more of a baby step. – March 10, 2020
Winter trail users causing damage in Colorado Springs – February 26, 2020
Colorado Springs at a critical moment in designing downtown, urban expert warns – February 26, 2020
Poll finds Colorado voters strongly support conservation, public lands – February 20, 2020
Colorado Air-Quality Board Readies High-Stakes Climate Rules for 2020 – November 22, 2019
New study finds elevated health risks due to pollution from oil and gas activity in Colorado – November 21, 2019
Report: Colorado’s Superfund sites among those threatened by climate change – November 19, 2019
How Colorado’s Population Changed Over Eight Years – November 11, 2019
There Are 24 High-Hazard Dams in Colorado Seen as Problematic – November 11, 2019
‘Bird Emergency:’ Big Declines In U.S., Including Colorado – September 25, 2019
Colorado’s Crowded Trails Mean Crowded Parking Lots. JeffCo Thinks It Has A Fix – September 24, 2019
For first time, State Parks ponders reservation requirement to visit Eldorado Canyon State Park – September 17, 2019
Colorado takes unusual step of asking EPA to lower state’s air quality rating – September 6, 2019
Development devours U.S. natural landscape at rate of 2 football fields per minute, study finds – August 6, 2019
Colorado transportation leaders are banking on buses and trains as population surges – August 5, 2019
Millennials flock to Colorado as overall populace grows by 80,000 people – July 29, 2019
Colorado releases state-of-the-art analysis to provide better planning for state’s water supply – July 23, 2019
Front Range air quality is terrible, but Colorado’s efforts are showing some improvement in ozone pollution – June 3, 2019
Study looks at feasibility of Front Range passenger rail – May 29, 2019
What Are Colorado’s Biggest Sources of Air Pollution? – May 29, 2019
Colorado Parks and Wildlife to study use of Eldorado Canyon State Park – May 23, 2019
New Colorado environmental law stalls oil investment – May 9, 2019
Avalanches Menace Colorado as Climate Change Raises the Risk – March 9, 2019
Colorado’s new Department of Natural Resources head talks oil and water – March 7, 2019
Rocky Mountain National Park was one of most-visited parks in the U.S. last year – March 7, 2019
Fight against Colorado ski traffic hampered by budget – March 5, 2019
Front Range Frackers Are Flouting Federal Clean-Air Laws, Activists Claim – February 20, 2019
Bark beetle expands radically in Colorado amid historic drought, heat – January 23, 2019
Colorado population growth creating crowded, dangerous shooting sites in national forests – January 24, 2019
I-70 Traffic To The Mountains Sucks. Could High-Speed Trains One Day Be The Solution? – January 21, 2019
2019 plan for Colorado state parks finalized – January 5, 2019