Population By Race and Ethnicity in Jefferson County, CO in 2018

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2018, the 580,027 population of Jefferson County, Colorado comprised of 89,829 people who identified as Hispanic (15.49%), and 490,198 people who identified as Non-Hispanic (84.51%).

Race: The White Alone population was the largest racial group in Jefferson County, Colorado with a population of 531,579 (91.65%); Asian Alone population was the second largest racial group with a population of 17,605 (3.04%); and Two Or More Races was the third largest racial group with a population of 14,763 (2.55%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Jefferson County, Colorado in 2018, with a population of 452,303 (77.98%); the second largest ethnic group was White Alone - Hispanic with a population of 79,276 (13.67%); and the third largest ethnic group was Asian Alone - Non Hispanic with a population of 16,739 (2.89%).

The charts and tables below shows the population and percentage of each racial and ethnicity group in Jefferson, Colorado.

You can find similar information for other Colorado counties, and for Colorado.

Data Source: US Census Bureau (Vintage).

See this for other years:

Hispanics and Non Hispanics in Jefferson County, CO in 2018

Total Population:580,027

Non Hispanic (84.51%)

Hispanic (15.49%)

Race in Jefferson County, CO in 2018

Total Population:580,027

White Alone (91.65%)

Asian Alone (3.04%)

Two or more races (2.55%)

Black or African American Alone (1.44%)

American Indian and Alaska Native Alone (1.21%)

Native Hawaiian And Pacific Islander Alone (0.12%)

Ethnicity in Jefferson County, CO in 2018

Total Population:580,027

Non-Hispanic White Alone (77.98%)

Hispanic White Alone (13.67%)

Non-Hispanic Asian Alone (2.89%)

All Other Ethnicities (2.42%)

Non-Hispanic Two or more races (1.88%)

Non-Hispanic Black or African American Alone (1.17%)

Population By Race in Jefferson , CO in 2018

Race	Population	Percentage
White Alone	531,579	91.65%
Asian Alone	17,605	3.04%
Two Or More Races	14,763	2.55%
Black or African American Alone	8,334	1.44%
American Indian and Alaska Native Alone	7,033	1.21%
Native Hawaiian And Pacific Islander Alone	713	0.12%

Population By Ethnicity in Jefferson , CO in 2018

Ethnicity	Population	Percentage
White Alone - Non Hispanic	452,303	77.98%
White Alone - Hispanic	79,276	13.67%
Asian Alone - Non Hispanic	16,739	2.89%
Two Or More Races - Non Hispanic	10,924	1.88%
Black or African American Alone - Non Hispanic	6,771	1.17%
American Indian and Alaska Native Alone - Hispanic	4,088	0.71%
Two Or More Races - Hispanic	3,839	0.66%
American Indian and Alaska Native Alone - Non Hispanic	2,945	0.51%
Black or African American Alone - Hispanic	1,563	0.27%
Asian Alone - Hispanic	866	0.15%
Native Hawaiian And Pacific Islander Alone - Non Hispanic	516	0.09%
Native Hawaiian And Pacific Islander Alone - Hispanic	197	0.03%