Summit County, Colorado Population 2021

Summit County, Colorado's estimated population is 31,399 with a growth rate of 0.62% in the past year according to the most recent United States census data. Summit County, Colorado is the 20th largest county in Colorado. The 2010 Population was 28,073 and has seen a growth of 11.85% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Growth Rate
202131,3991940.62%
202031,2051940.63%
201931,0111940.63%
201830,817-3-0.01%
201730,8202680.88%
201630,5525071.69%
201530,0457282.48%
201429,3175892.05%
201328,7284301.52%
201228,2982560.91%
201128,042-31-0.11%
201028,07315,192117.94%
199012,8814,03345.58%
19808,8486,183232.01%
19702,66559228.56%
19602,07393882.64%
19501,135-619-35.29%
19401,75476777.71%
1930987-737-42.75%
19201,724-279-13.93%
19102,003-741-27.00%
19002,74483843.97%
18901,906-3,553-65.09%
18805,4595,2012015.89%
18702580.00%
2021 Growth Rate
0.62%
County Website
Founded
November 1, 1861
County Seat
2010 Population
28,073
Growth Since 2010
11.85%
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Summit County, Colorado Population Growth

Population by Race

Race Population Percentage
White27,97891.29%
Some Other Race1,3804.50%
Two or More Races5801.89%
Black or African American3421.12%
Asian1790.58%
American Indian and Alaska Native1110.36%
Native Hawaiian and Other Pacific Islander790.26%
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Summit County, Colorado Population by Race

Summit County, Colorado Population Pyramid $2021

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Summit County, Colorado Median Age

39.1


Total

39.4


Male

38.8


Female

Summit County, Colorado Adults

There are 25,672 adults, (3,914 of whom are seniors) in Summit County, Colorado.

Summit County, Colorado Age Dependency

40.9

Age Dependency Ratio

18

Old Age Dependency Ratio

22.9

Child Dependency Ratio

Summit County, Colorado Sex Ratio

Female

13,953

45.53%

Male

16,696

54.47%

Summit County, Colorado Population by Age

Summit County, Colorado Renter vs Owner Occupied by Household Type

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Summit County, Colorado Household Types

Type Owner Renter
Married75.9%24.1%
All65.5%34.5%
Female59.1%40.9%
Non Family55.6%44.4%
Male35.2%64.8%

65.5%

Rate of Home Ownership

Summit County, Colorado Households and Families

Type Count Average Size Owned
All10,6412.8465.5
Married5,2233.2275.9
Non Family4,7692.1655.6
Female5414.1559.1
Male1088.0235.2

3.1

Average Family Size

2.84

Average Household Size

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Summit County, Colorado Households by Type

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Education Attained Count Percentage
Less Than 9th Grade8753.75%
9th to 12th Grade7883.37%
High School Graduate4,19417.95%
Some College3,92116.79%
Associates Degree1,3495.78%
Bachelors Degree8,79537.65%
Graduate Degree3,43714.71%
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Summit County, Colorado Educational Attainment by Sex (over 25)

Summit County, Colorado Educational Attainment by Race

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Race Total High School Bachelors
White20,26119,70111,528
Hispanic2,2481,421250
Other Race88340486
2+ Races379379245
Black31337
Asian122122112
Native American110110107
Islander66

The highest rate of high school graduation is among native american people with a rate of 100.00%.

The highest rate of bachelors degrees is among native american people with a rate of 97.27%.

Summit County, Colorado Educational Attainment by Race

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Name Average Male Female
Overall$40,016$42,204$36,366
Less Than 9th Grade$33,380$36,492$20,286
High School Graduate$31,168$32,917$17,483
Some College$41,390$45,228$37,872
Bachelors Degree$41,578$44,673$40,778
Graduate Degree$50,194$52,823$45,297

$40,016

Average Earnings

$42,204

Average Male

$36,366

Average Female

Summit County, Colorado Earnings by Educational Attainment

Summit County, Colorado Language by Age

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Summit County, Colorado Language

84.81% of Summit County, Colorado residents speak only English, while 15.19% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 11.44% of the population.

Summit County, Colorado Language

Summit County, Colorado Poverty by Race

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Name Total In Poverty Poverty Rate
White25,1031,5356.11%
Hispanic4,32882819.13%
Other1,380966.96%
Islander665278.79%
Black318299.12%
Asian179105.59%

7.98%

Overall Poverty Rate

6.25%

Male Poverty Rate

10.05%

Female Poverty Rate

Poverty in Summit County, Colorado

The race most likely to be in poverty in Summit County, Colorado is Islander, with 78.79% below the poverty level.

The race least likely to be in poverty in Summit County, Colorado is Asian, with 5.59% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 3.28%. Among those working part-time, it was 11.03%, and for those that did not work, the poverty rate was 16.88%.

Summit County, Colorado Poverty

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Name Poverty
Some College8.45%
High School8.32%
Bachelors or Greater4.44%
Less Than 9th Grade2.55%

Summit County, Colorado Poverty Rate by Education

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Rate Poverty
Female Unemployed58.33%
Male Unemployed32.06%
Female Employed5.94%
Male Employed4.35%

Summit County, Colorado Poverty Rate by Employment Status and Sex

Summit County, Colorado Income by Household Type

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Name Median Mean
Households$79,277$101,084
Families$89,800$112,731
Married Families$97,307-
Non Families$62,049$81,747
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Income by Household Type

Summit County, Colorado Marital Status

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Marriage Rates

43.9%

Overall Marriage Rate

40.9%

Male Marriage Rate

47.6%

Female Marriage Rate

Summit County, Colorado Married by Age and Sex

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Summit County, 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 Over 65.

Summit County, Colorado Marital Status by Race

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Summit County, Colorado Marital Status

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1,265

Number of Veterans

1,224

Male Veterans

41

Female Veterans

War Veterans
Vietnam442
Second Gulf War196
First Gulf War147
Korea42
World War II27

Summit County, Colorado Veterans by War

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Age Group Veterans
65 to 74405
75+295
35 to 54287
55 to 64176
18 to 34102

Summit County, Colorado Veterans by Age

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Name Veterans % of Total
White1,0974.65%
2+ Races15736.77%
Hispanic280.98%
Black113.51%

Summit County, Colorado Veterans by Race

Summit County, Colorado Veterans by Education

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3.64%

Veteran Poverty Rate

28.22%

Veteran Disability Rate

Summit County, Colorado Veterans by Education

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77.9%

Labor Force Participation

75.4%

Employment Rate

3.2%

Unemployment Rate

Summit County, Colorado Employment by Age

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Summit County, Colorado Employment by Race

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Summit County, 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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28.15%

Born in Summit County, Colorado

88.59%

Native Born

11.41%

Foreign Born

8.50%

Non Citizen

2.91%

Naturalized

Place of Birth

88.59% of Summit County, Colorado residents were born in the United States, with 28.15% having been born in Colorado. 8.50% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Summit County, Colorado Place of Birth

  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990

Sources