Thornton

County:: Adams County
County Seat:: No
Area (mi²):: 36.504
State:: Colorado

Thornton is a city located in Adams County, Colorado. Thornton has a 2025 population of 146,746. Thornton is currently growing at a rate of 0.63% annually and its population has increased by 3.21% since the most recent census, which recorded a population of 142,185 in 2020.

The average household income in Thornton is $119,261 with a poverty rate of 7.3%. The median age in Thornton is 34.3 years: 33.6 years for males, and 35 years for females.

Demographics

The racial composition of Thornton includes 63.49% White, 8.46% other race, 5.84% Asian, and smaller percentages for Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Other race

Asian

Black or African American

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	90,712	63.49%
Two or more races	27,280	19.09%
Other race	12,087	8.46%
Asian	8,344	5.84%
Black or African American	3,149	2.2%
Native American	1,296	0.91%
Native Hawaiian or Pacific Islander	10	0.01%

Thornton Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Thornton's average per capita income is $57,054. Household income levels show a median of $100,985. The poverty rate stands at 7.3%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$126,074	$145,015
Families	$115,505	$132,284
Households	$100,985	$119,261
Non Families	$65,478	$77,944

$57,054

Average Income

$100,985

Median Household Income

7.3%

Poverty Rate