Colorado / Jefferson County

Get Jefferson County, CO Demographics

Who knew Jefferson County demographics could be so sexy? Check out Census 2010 data and current American Community Survey data for Jefferson County, CO. Feast your eyes on statuesque tables, curvacous pie charts and titillating trend lines. We dare you to call Jefferson County demographic data boring!

Quick Facts

Population 2010 Census	534,543	#4 in the state
Median Income 2010 for Households	$66,075
Poverty Rate	8.0%
Median Age	40.4 years
Largest Racial or Ethnic Group	White
Sources: Census 2010 SF1 & 2006-2010 American Community Survey 5 year estimates

Jefferson County Demographics Summary

population icon With 534,543 people, Jefferson County is the 4th most populated county in the state of Colorado out of 64 counties. But watch out, Jefferson County, because Adams County with 441,603 people and Larimer County with 299,630 people are right behind you.

In 2010, the median household income of Jefferson County residents was $66,075. Jefferson County households made slightly more than Garfield County households ($64,902) and Boulder County households ($64,839) However, 8.0% of Jefferson County residents live in poverty.

age icon The median age for Jefferson County residents is 40.4 years young.

race icon The largest Jefferson County racial/ethinic groups are White (79.9%) followed by Hispanic (14.3%) and Asian (2.6%).

Jefferson County Race / Ethnic Groups

Non-Hispanic Population
White	427,160
Black	5,001
American Indian	2,638
Asian	13,682
Pacific Islander	390
Some Other Race	715
Two or More Races	8,512
Hispanic	76,445
Source: Census 2010 SF1 Table P9 Hispanic or Latino or Not Hispanic or Latino by Race

White
Black
Indian
Asian
Pacific Islander
Some Other Race
Two or More Races
Hispanic

3 Largest Jefferson County Race / Ethnic Groups

The Jefferson County White population is 427,160 persons or 79.9%.
The Jefferson County Hispanic population is 76,445 persons or 14.3%.
The Jefferson County Asian population is 13,682 persons or 2.6%.

Note: the US Census Bureau defines race and ethnicity differently from the way most people think about race and ethnicity. In a nutshell, a person's origin (or what used to be called ethnicity) is either Hispanic or Non-Hispanic. And a person's race can be white, black or African American, American Indian or Alaska Native, Asian, Native Hawaiian or Other Pacific Islander, Some Other Race or Two or More Races. For more details about race and origin data, google "US Census Bureau race and origin Census 2010."

Jefferson County Median Age

Fellas, you need to start eating your Wheaties™. Jefferson County ladies have a higher median age.

Median Age	40.4 years
Median Age - Females	41.8 years
Median Age - Males	39.0 years
Source: Census 2010 SF1 Table P13 Median Age by Male/Female

Under 18 and Over 65 Age Breakdown

With 22.3% of the Jefferson County population under 18, Jefferson County has more spring chickens than a KFC ® at dinner time.

Persons Under 18	22.3%
Persons Over 65	12.6%
Everyone else	65.1
Source: Census 2010 SF1 Table P12 Male/Female by Age

Under 18
Over 65
Everyone else

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