Jefferson County Summary

Life in Jefferson County research summary. HomeSnacks has been researching the quality of life in Jefferson County over the past eight years using Census data, FBI crime data, cost of living data, and other primary sources. Based on the most recently available data, we found the following about life in Jefferson County:

  • The population in Jefferson County is 580,519.

  • The median home value in Jefferson County is $608,234.

  • The median income in Jefferson County is $103,167.

  • The median rent in Jefferson County is $1,696.

  • The unemployment rate in Jefferson County is 3.9%.

  • The poverty rate in Jefferson County is 6.7%.

  • The average high in Jefferson County is 63.8° and there are 35.2 inches of rainfall annually.

Cities & Towns in Jefferson County

List Of Cities & Towns in Jefferson County

Lakewood, CO Population 156,149

Arvada, CO Population 123,066

Westminster, CO Population 115,502

Littleton, CO Population 45,531

Dakota Ridge, CO Population 34,234

Ken Caryl, CO Population 33,505

Wheat Ridge, CO Population 32,263

Columbine, CO Population 25,940

Golden, CO Population 20,461

Superior, CO Population 13,146

Fairmount, CO Population 10,398

Evergreen, CO Population 8,972

Applewood, CO Population 7,985

West Pleasant View, CO Population 5,197

Edgewater, CO Population 5,002

Genesee, CO Population 4,046

Coal Creek, CO Population 2,431

Indian Hills, CO Population 1,445

Kittredge, CO Population 1,021

Aspen Park, CO Population 1,006

Bow Mar, CO Population 996

Mountain View, CO Population 682

Morrison, CO Population 393

Idledale, CO Population 329

East Pleasant View, CO Population 134

Lakeside, CO Population 7

Map Of Jefferson County

Jefferson County, CO Weather

  • The average high in Jefferson County is 63.8°.

  • There are 81.39 nice days each year.

  • Expect an average of 35.2 inches of rain each year with 20.7 inches of snow.

  • There is an average of 6:29 hours of sun each day in Jefferson County.

StatJefferson County
Mean High63.8
Nice Days81.39
Rainfall35.2
Snowfall20.7
Sunny_hours6:29
63.8°
Average High
35.2
Inches of Rain

Jefferson County Photos

Cable Stayed Bridge At Gold Strike Park In Arvadac Colorado
Source: Wikipedia User Jeffrey Beall from Denver | CC BY-SA 2.0
Tulip Monsella
Source: Wikipedia User MECU (self) | CC BY-SA 2.5
Olde Town Arvada Watertower
Source: Wikipedia User ChrisEngelsma | CC BY-SA 3.0
Edgewater
Source: Wikipedia User Jeffrey Beall | CC BY 3.0
Welcome To Goldenc Co Img
Source: Wikipedia User Billy Hathorn | CC BY-SA 3.0
Calvary Episcopal Churchc Goldenc Co Img
Source: Wikipedia User Billy Hathorn | GFDL

Jefferson County Demographics

Population over time in Jefferson County

The current population in Jefferson County is 580,519. The population has increased 0.9% from 2019.

Year Population % Change
2022 580,130 0.2%
2021 578,795 0.7%
2020 574,798 -

Gender in Jefferson County

  • Jefferson County is 49.6% female with 288,216 female residents.

  • Jefferson County is 50.4% male with 292,303 male residents.

Female
49.6% (288,216)
Male
50.4% (292,303)
Gender Jefferson County CO USA
Female 49.6% 49.3% 50.4%
Male 50.4% 50.7% 49.6%

Race / Ethnicity in Jefferson County

Jefferson County is:

  • 76.5% White with 444,084 White residents.

  • 1.1% African American with 6,112 African American residents.

  • 0.3% American Indian with 1,678 American Indian residents.

  • 2.8% Asian with 16,221 Asian residents.

  • 0.1% Hawaiian with 410 Hawaiian residents.

  • 0.3% Other with 1,670 Other residents.

  • 3.2% Two Or More with 18,841 Two Or More residents.

  • 15.8% Hispanic with 91,503 Hispanic residents.

White
76.5% (444,084)
African American
1.1% (6,112)
American Indian
0.3% (1,678)
Asian
2.8% (16,221)
Hawaiian
0.1% (410)
Other
0.3% (1,670)
Two Or More
3.2% (18,841)
Hispanic
15.8% (91,503)

Table: Jefferson County By Race

Race Jefferson County CO USA
White 76.5% 66.2% 58.9%
African American 1.1% 3.8% 12.1%
American Indian 0.3% 0.4% 0.6%
Asian 2.8% 3.1% 5.7%
Hawaiian 0.1% 0.1% 0.2%
Other 0.3% 0.4% 0.4%
Two Or More 3.2% 3.8% 3.5%
Hispanic 15.8% 22.1% 18.7%

Household Income For Jefferson County, Colorado

  • 3.0% of households in Jefferson County earn Less than $10,000.

  • 1.7% of households in Jefferson County earn $10,000 to $14,999.

  • 4.3% of households in Jefferson County earn $15,000 to $24,999.

  • 4.6% of households in Jefferson County earn $25,000 to $34,999.

  • 7.9% of households in Jefferson County earn $35,000 to $49,999.

  • 14.3% of households in Jefferson County earn $50,000 to $74,999.

  • 12.8% of households in Jefferson County earn $75,000 to $99,999.

  • 21.2% of households in Jefferson County earn $100,000 to $149,999.

  • 13.1% of households in Jefferson County earn $150,000 to $199,999.

  • 17.2% of households in Jefferson County earn $200,000 or more.

Less than $10,000
3.0% (17,449)
$10,000 to $14,999
1.7% (9,921)
$15,000 to $24,999
4.3% (24,940)
$25,000 to $34,999
4.6% (26,421)
$35,000 to $49,999
7.9% (45,821)
$50,000 to $74,999
14.3% (82,887)
$75,000 to $99,999
12.8% (74,358)
$100,000 to $149,999
21.2% (122,958)
$150,000 to $199,999
13.1% (75,788)
$200,000 or more
17.2% (99,973)
Income Jefferson County CO USA
Less than $10,000 3.0% 3.9% 4.9%
$10,000 to $14,999 1.7% 2.7% 3.8%
$15,000 to $24,999 4.3% 5.4% 7.0%
$25,000 to $34,999 4.6% 5.9% 7.4%
$35,000 to $49,999 7.9% 9.4% 10.7%
$50,000 to $74,999 14.3% 15.6% 16.1%
$75,000 to $99,999 12.8% 13.2% 12.8%
$100,000 to $149,999 21.2% 19.2% 17.1%
$150,000 to $199,999 13.1% 10.8% 8.8%
$200,000 or more 17.2% 13.9% 11.4%

Highest level of educational attainment in Jefferson County for adults over 25

  • 3.0% of adults in Jefferson County completed < 9th grade.

  • 3.0% of adults in Jefferson County completed 9-12th grade.

  • 19.0% of adults in Jefferson County completed high school / ged.

  • 19.0% of adults in Jefferson County completed some college.

  • 8.0% of adults in Jefferson County completed associate's degree.

  • 31.0% of adults in Jefferson County completed bachelor's degree.

  • 13.0% of adults in Jefferson County completed master's degree.

  • 2.0% of adults in Jefferson County completed professional degree.

  • 2.0% of adults in Jefferson County completed doctorate degree.

< 9th Grade
3% (17,415)
9-12th Grade
3% (17,415)
High School / GED
19% (110,298)
Some College
19% (110,298)
Associate's Degree
8% (46,441)
Bachelor's Degree
31% (179,960)
Master's Degree
13% (75,467)
Professional Degree
2% (11,610)
Doctorate Degree
2% (11,610)
Education Jefferson County CO USA
< 9th Grade 3% 3% 3%
9-12th Grade 3% 4% 6%
High School / GED 19% 20% 26%
Some College 19% 20% 20%
Associate's Degree 8% 8% 9%
Bachelor's Degree 31% 27% 21%
Master's Degree 13% 12% 10%
Professional Degree 2% 3% 2%
Doctorate Degree 2% 2% 2%

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