Colorado Population 2021

5,893,630
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This estimate is calculated from projecting the most recent Census estimates. The last official population count for Colorado was taken during the 2010 Census. At that time, it was found that the population was 5,029,196.

The 2010 Census numbers represented a rise of 16.9% from the 2000 census survey, when 4,301,262 residents were shown to be living in Colorado. Updated estimates arrive on a yearly basis, and in 2015, it was reported that the numbers in Colorado had increased to 5,456,574.

The 2015 estimate reflects an 8.5% increase since the last census. With a yearly growth rate of 1.85% in 2016, Colorado is the second fastest-growing state in the US. The largest city, and the capital of Colorado, is Denver. This capital city boasts over 700,000 individuals.

Colorado Area and Population Density

With a large surface area of 104,094 square miles (269,837 square kilometers) Colorado is the eighth largest state in the USA, but it is relatively sparsely populated when compared to the overall size. Some of the terrain is harsh, and the vast Rocky Mountain range accounts for a significant proportion of the state’s land mass.

As a result of these land conditions, there are approximately 52 people per square mile (19.9 per square kilometer) and that makes Colorado only the 37th biggest state in terms of population density.

Colorado Gender and Religion Statistics

The median age is 36.4, with 49.8% Female, and 50.1% Male. In religious terms, Colorado's individuals report 64% affiliated with the Christian faith, 5% non-Christian, and 29% are not affiliated.

Colorado Boundary, Census, and Statehood History

Although part of Colorado was acquired as early as the Louisiana Purchase of 1803, it had no organized government until 1850, when parts of the present State were included in New Mexico and Utah Territories. Colorado was established as a territory in 1861 with its present boundaries, from parts of Kansas, Nebraska, New Mexico, and Utah Territories. The 1860 population is the total enumerated within the 1861 boundaries. Colorado was admitted as a State on August 1, 1876. Present-day Colorado had no census coverage in 1850, and none in 1860 for the portion taken from Utah Territory.

Colorado Demographics

According to the most recent ACS, the racial composition of Colorado was:

  • White: 84.00%
  • Black or African American: 4.16%
  • Other race: 3.86%
  • Two or more races: 3.67%
  • Asian: 3.18%
  • Native American: 0.98%
  • Native Hawaiian or Pacific Islander: 0.15%

Colorado’s Population History

Historically, Colorado’s location in the middle of the USA made it a popular route for those traveling through the new world. Many liked the state so much that they chose to settle there, and the evidence of that is clear from the earliest censuses.

Back in 1861, the Colorado Territory population was declared at 25,371 and ten years later, there had been just a modest rise of 16.3% to 39,864. However, by 1880 that figure had almost quadrupled and the census from that year reveals a total population of 194,327 -- an increase of 387.5% from the 1870 numbers.

Colorado Population Growth

Although that was by far the biggest increase in population in decade terms, further significant rises followed this initial boom, and by the beginning of the 20th century, Colorado’s numbers had grown to 539,700. In the latter half of the 1900s, increases in the region of 30% from census to census took the population of Colorado past the 5 million mark in 2012.

Colorado Population Projections

Many states in the US have shown growth at every census, but Colorado's population is actually growing faster now than it did during the 20s, 30s, and 40s. The current growth is already causing housing shortages and increased traffic as Denver and Colorado Springs try to address the increased immigration.

Like most states across the US, the population of Colorado is growing, but the growth has been significant in past years. Increases between censuses of 30% are not uncommon, and if that trend continues, the numbers could comfortably exceed 6 million at the next census in 2020. Some estimates have placed the 2040 population as high as 7.8 million.

Approximately 10% of the population of Colorado is made up of immigrants. These immigrants, according to data from 2011, make up over 11% of workers for the state of Colorado.

Estimates also show that 34.9% of the Latino population is under the age of 18, ountumbering African Americans (25%), Asian Americans (23%), and non-Hispanic Whites (19.3%) in the under-18 age bracket. There are higher proportions of Hispanics located in Colorado Springs, Metro Denver, Pueblo, and Greeley, with a large percentage of descendents of early Mexican settlers. The state has the fifth largest Mexican-American population in the nation, as well as the sixth highest percentage of Mexican-Americans.

Colorado also has large communities of African American residents located in Denverand Colorado Springs. Asian-Americans are also found throughout the state, particularly in the south and southeast areas of Denver. This includes Mongolians, Koreans, Filipinos, and Chinese residents. The Denver metropolitan area is considered to be one of the most racially diverse in the state.

Colorado Growth Rate

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Colorado Population Rank

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Colorado Population 2021

Colorado Facts

Denver County

  • Population749,103
  • Density4885.39 per sq km
  • Growth Since 201024.16%
  • State Population Rank1
  • % of State12.71%

Colorado County Growth

From the time of the 2010 Census until 2015 when the US Census Bureau took population estimates, several counties in the state posted significant growth rates. The counties with the highest growth are all neighboring, beginning with Larimer County and Weld County along the northern border, and ending with El Paso County. With a growth rate of 13.14%, Denver County had the highest recorded population growth during the 5-year period.

Just as some Colorado counties saw growth, others posted declining populations during the same time period. The southwestern county of Bent had the highest decline of 10.43%. while neighboring Las Animas County has the second largest decline of 8.68%. Other counties that saw decreases in population include Moffatt County, Hinsdale County, and Kit Carson County.

Colorado Population Growth Rate by County

Denver County

  • Population749,103
  • Density4885.39 per sq km
  • Growth Since 201024.16%
  • State Population Rank1
  • % of State12.71%

Colorado Population Density by County

Population by Race

Race Population Percentage
White4,712,57384.00%
Black or African American233,6474.16%
Some Other Race216,7673.86%
Two or More Races205,7243.67%
Asian178,1473.18%
American Indian and Alaska Native54,8470.98%
Native Hawaiian and Other Pacific Islander8,6430.15%
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Colorado Population by Race

Colorado Population Pyramid 2021

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Colorado Median Age

36.7


Total

35.8


Male

37.8


Female

Colorado Adults

There are 4,349,340 adults, (773,706 of whom are seniors) in Colorado.

Colorado Age Dependency

56.9

Age Dependency Ratio

21.6

Old Age Dependency Ratio

35.3

Child Dependency Ratio

Colorado Sex Ratio

Female

2,787,150

49.68%

Male

2,823,200

50.32%

Colorado Population by Age

Colorado Renter vs Owner Occupied by Household Type

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Colorado Household Types

Type Owner Renter
Married80.8%19.2%
All65.2%34.8%
Male55.3%44.7%
Female50.5%49.5%
Non Family48.9%51.1%

65.2%

Rate of Home Ownership

Colorado Households and Families

Type Count Average Size Owned
All2,148,9902.5665.2
Married1,068,8403.280.8
Non Family779,6161.3848.9
Female201,1553.3350.5
Male99,3803.2955.3

3.14

Average Family Size

2.56

Average Household Size

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Colorado Households by Type

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Education Attained Count Percentage
Less Than 9th Grade129,1233.38%
9th to 12th Grade186,6284.88%
High School Graduate817,45221.37%
Some College805,33921.05%
Associates Degree321,9038.41%
Bachelors Degree981,01725.64%
Graduate Degree584,11715.27%
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Colorado Educational Attainment by Sex (over 25)

Colorado Educational Attainment by Race

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Name Total High School Bachelors
White2,795,7602,699,1201,320,660
Hispanic671,087488,575107,873
Black149,058134,45839,191
Other Race129,69389,25517,130
Asian122,393106,63264,413
Multiple Races90,27381,96033,247
Native American36,78530,7786,573
Islander5,4424,8981,410

The highest rate of high school graduation is among white people with a rate of 96.54%.

The highest rate of bachelors degrees is among asian people with a rate of 52.63%.

Colorado Educational Attainment by Race

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Name Average Male Female
Overall$44,317$51,864$37,217
Less Than High School$27,416$32,347$19,593
High School Grad$33,987$39,762$27,283
Some College$39,197$46,570$31,915
Bachelors Degree$54,487$67,534$45,208
Graduate Degree$70,373$89,110$57,521

$44,317

Average Earnings

$51,864

Average Male

$37,217

Average Female

Colorado Earnings by Educational Attainment

Colorado Language by Age

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Colorado Language

83.13% of Colorado residents speak only English, while 16.87% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 11.71% of the population.

Colorado Language

Colorado Poverty by Race

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Name Total In Poverty Poverty Rate
White3,744,130293,4837.84%
Hispanic1,180,450191,70216.24%
Black222,76439,45117.71%
Other214,12534,36716.05%
Multiple201,66427,57913.68%
Asian174,82719,01510.88%
Native51,87210,09119.45%
Islander8,3391,09613.14%

10.31%

Overall Poverty Rate

9.44%

Male Poverty Rate

11.18%

Female Poverty Rate

Poverty in Colorado

The race most likely to be in poverty in Colorado is Native, with 19.45% below the poverty level.

The race least likely to be in poverty in Colorado is White, with 7.84% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.06%. Among those working part-time, it was 14.93%, and for those that did not work, the poverty rate was 18.02%.

Colorado Poverty

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Name Poverty
Less Than High School20.13%
High School11.04%
Some College8.72%
Bachelors or Greater4.02%

Colorado Poverty Rate by Education

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Name Poverty
Female Unemployed28.12%
Male Unemployed25.78%
Female Employed6.51%
Male Employed4.67%

Colorado Poverty Rate by Employment Status and Sex

Colorado Income by Household Type

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Name Median Mean
Households$72,331$96,970
Families$88,931$114,593
Married Families$101,735$128,486
Non Families$45,537$62,145
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Income by Household Type

Colorado Marital Status

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Marriage Rates

50.4%

Overall Marriage Rate

50.7%

Male Marriage Rate

50.2%

Female Marriage Rate

Colorado Married by Age and Sex

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Colorado Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.

Colorado Marital Status by Race

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Colorado Marital Status

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373,795

Number of Veterans

334,770

Male Veterans

39,025

Female Veterans

War Veterans
Vietnam127,187
First Gulf War95,590
Second Gulf War93,284
Korea23,604
World War II9,732

Colorado Veterans by War

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Age Group Veterans
35 to 54101,875
65 to 7490,611
75+71,247
55 to 6467,877
18 to 3442,185

Colorado Veterans by Age

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Name Veterans % of Total
White327,3568.88%
Hispanic40,0184.95%
Black20,63312.03%
2 or More9,0307.90%
Other7,3314.72%
Asian4,8663.48%
Indian3,7628.77%
Hawaiian81712.79%

Colorado Veterans by Race

Colorado Veterans by Education

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6.14%

Veteran Poverty Rate

26.09%

Veteran Disability Rate

Colorado Veterans by Education

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68.4%

Labor Force Participation

64.7%

Employment Rate

4.3%

Unemployment Rate

Colorado Employment by Age

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Colorado Employment by Race

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Colorado Employment by Education

Origin of Non-Citizens

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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

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42.39%

Born in Colorado

90.26%

Native Born

9.74%

Foreign Born

5.55%

Non Citizen

4.19%

Naturalized

Place of Birth

90.26% of Colorado residents were born in the United States, with 42.39% having been born in Colorado. 5.55% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Colorado Place of Birth