Jefferson County, Colorado Population 2018

Jefferson County, Colorado's estimated population is 574,613 with a growth rate of 2.83% in the past year according to the most recent United States census data. Jefferson County, Colorado is the 4th largest county in Colorado.

Year Population Growth Growth Rate
2017574,61315,8032.83%
2016558,810-12,029-2.11%
2016570,8396,4741.15%
2015564,3655,8461.05%
2014558,5196,7101.22%
2013551,8095,4761.00%
2012546,3335,9041.09%
2011540,4294,6920.88%
2010535,73797,30722.19%
1990438,43066,67717.94%
1980371,753138,72259.53%
1970233,031105,51182.74%
1960127,52071,833128.99%
195055,68724,96281.24%
194030,7258,91540.88%
193021,8107,41051.46%
192014,4001691.19%
191014,2314,92552.92%
19009,30685610.13%
18908,4501,64624.19%
18806,8044,414184.69%
18702,3900.00%

Jefferson County, Colorado Population Growth

Population Data via

Population by Race

Race Population
White507,544
Asian14,915
Two or More Races14,814
Some Other Race10,017
Black or African American6,452
American Indian and Alaska Native4,766
Native Hawaiian and Other Pacific Islander302

Race Data via US Census (2016 ACS 5-Year Survey)

Jefferson County, Colorado Population Pyramid 2018

0%2%4%6%8% Male Population0%2%4%6%8% Female Population80757065605550454035302520151050

Data via US Census (2016 ACS 5-Year Survey): Table S0101

Jefferson County, Colorado Median Age

40.5


Total

39


Male

42


Female

Jefferson County, Colorado Adults

There are 442,019 adults, (81,586 of which are seniors) in Jefferson County, Colorado.

Jefferson County, Colorado Age Dependency

55.1

Age Dependency Ratio

22.7

Old Age Dependency Ratio

32.4

Child Dependency Ratio

Jefferson County, Colorado Sex Ratio

Female

281,052

50.29%

Male

277,758

49.71%

Jefferson County, Colorado Households and Families

Jefferson County, Colorado Renter vs Owner Occupied by Household Type

Jefferson County, Colorado Household Types

Type Owner Renter
Married84.8%15.2%
All70.3%29.7%
Male58.2%41.8%
Non Family55.2%44.8%
Female54.1%45.9%

70.3%

Rate of Home Ownership

Jefferson County, Colorado Households by Type

Type Count Average Size Owned
All225,3202.4470.3
Married115,0273.0484.8
Non Family79,9031.3255.2
Female21,0213.1154.1
Male9,3693.1458.2

2.98

Average Family Size

2.44

Average Household Size

5.6%

Unmarried (Opposite Sex)

0.5%

Unmarried (Same Sex)

Jefferson County, Colorado Households

Jefferson County, Colorado Education

Jefferson County, Colorado Educational Attainment by Sex (over 25)

Education Attained Count Percentage
Less Than 9th Grade7,0431.78%
9th to 12th Grade16,0694.07%
High School Graduate82,56720.89%
Some College90,10022.80%
Associates Degree32,5848.24%
Bachelors Degree105,64326.73%
Graduate Degree61,22415.49%

Jefferson County, Colorado Educational Attainment by Race

Name Total High School Bachelors
White326,626314,877148,738
Hispanic47,84838,4489,284
Asian10,5419,3955,059
Other Race6,4485,2221,111
Multiple Races6,4465,9742,358
Black3,9193,6101,258
Native American2,7892,314632
Islander19913352

The highest rate of high school graduation is among white people with a rate of 96.40%.

The highest rate of bachelors degrees is among white people with a rate of 47.99%.

Jefferson County, Colorado Earnings by Educational Attainment

Name Average Male Female
Overall$44,481$51,483$38,432
Less Than High School$24,773$28,318$18,447
High School Grad$35,065$40,071$30,233
Some College$40,094$46,681$33,592
Bachelors Degree$55,258$67,544$45,383
Graduate Degree$67,619$83,932$57,186

$44,481

Average Earnings

$51,483

Average Male

$38,432

Average Female

Jefferson County, Colorado Language

Jefferson County, Colorado Language by Age

Jefferson County, Colorado Language

89.22% of Jefferson County, Colorado residents speak only English, while 10.78% speak other languages. The largest non-English language is Spanish, which is spoken by 6.33% of the population.

Jefferson County, Colorado Poverty

Jefferson County, Colorado Poverty by Race

Name Total In Poverty Poverty Rate
White434,50329,2616.73%
Hispanic82,12011,64814.18%
Other9,6981,35113.93%
Multiple14,5401,2398.52%
Native4,4701,21927.27%
Black5,8881,16119.72%
Asian14,8409786.59%
Islander3023210.60%

8.12%

Overall Poverty Rate

7.46%

Male Poverty Rate

8.77%

Female Poverty Rate

Poverty in Jefferson County, Colorado

The race most likely to be in poverty in Jefferson County, Colorado is Native, with 27.27% below the poverty level.

The race least likely to be in poverty in Jefferson County, Colorado is Asian, with 6.59% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.48%. Among those working part-time, it was 11.90%, and for those that did not work, the poverty rate was 13.80%.

Jefferson County, Colorado Poverty Rate by Education

Name Poverty
Less Than High School20.04%
High School8.51%
Some College5.90%
Bachelors or Greater3.38%

Jefferson County, Colorado Poverty Rate by Employment Status and Sex

Name Poverty
Female Unemployed22.86%
Male Unemployed17.82%
Female Employed4.69%
Male Employed3.71%

Jefferson County, Colorado Income

Jefferson County, Colorado Income by Household Type

Name Median Mean
Households$72,017$93,255
Families$89,509$110,742
Married Families$101,300$123,098
Non Families$43,613$57,865

Jefferson County, Colorado Marital Status

Jefferson County, Colorado Marital Status

Marriage Rates

52.6%

Overall Marriage Rate

53.3%

Male Marriage Rate

51.8%

Female Marriage Rate

Jefferson County, Colorado Married by Age and Sex

Jefferson County, Colorado Marriage

The age group where males are most likely to be married is Over65, while the female age group most likely to be married is 35To44.

Jefferson County, Colorado Marital Status by Race

Jefferson County, Colorado Veterans

Jefferson County, Colorado Veterans by War

39,356

Number of Veterans

36,053

Male Veterans

3,303

Female Veterans

Name Veterans
Vietnam15,491
First Gulf War6,768
Second Gulf War5,070
Korea3,620
World War II2,146

Jefferson County, Colorado Veterans by Age

Name Veterans
65 to 7410,523
35 to 549,254
75+8,466
55 to 647,869
18 to 343,244

Jefferson County, Colorado Veterans by Race

Name Veterans % of Total
White37,1219.15%
Hispanic3,3965.92%
Black60412.74%
2 or More5947.14%
Asian4103.42%
Other3644.80%
Indian2637.80%

Jefferson County, Colorado Veterans by Education

4.89%

Veteran Poverty Rate

23.86%

Veteran Disability Rate

Jefferson County, Colorado Employment Status

Jefferson County, Colorado Employment by Age

69.5%

Labor Force Participation

65.9%

Employment Rate

5.2%

Unemployment Rate

Jefferson County, Colorado Employment by Race

Jefferson County, Colorado Employment by Education

Population of Cities in Jefferson County, Colorado

City 2010 Census 2016 Estimated Growth Growth Rate
Lakewood142995154393113987.97%
Arvada 1065241174531092910.26%
Westminster 10616011387577157.27%
Littleton 4165146333468211.24%
Wheat Ridge301923137211803.91%
Golden189092069617879.45%
Superior 12481131556745.40%
Edgewater515953231643.18%
Bow Mar 8669659911.43%
Mountain View507528214.14%
Morrison425435102.35%
Lakeside8800.00%
Data Sources
  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