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

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