Boulder

County:: Boulder County
County Seat:: Yes
Area (mi²):: 26.894
State:: Colorado

Boulder is a city located in Boulder County, Colorado. Boulder has a 2025 population of 104,414. It is also the county seat of Boulder County. Boulder is currently declining at a rate of -0.71% annually and its population has decreased by -3.43% since the most recent census, which recorded a population of 108,123 in 2020.

The average household income in Boulder is $140,662 with a poverty rate of 21.8%.The median age in Boulder is 28.8 years: 28.3 years for males, and 29.4 years for females.

Demographics

The racial composition of Boulder includes 81.77% White, 5.77% Asian, and smaller percentages for other race, Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	86,905	81.77%
Two or more races	9,796	9.22%
Asian	6,137	5.77%
Other race	1,889	1.78%
Black or African American	1,139	1.07%
Native American	344	0.32%
Native Hawaiian or Pacific Islander	64	0.06%

Boulder Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Boulder's average per capita income is $64,110. Household income levels show a median of $85,364. The poverty rate stands at 21.8%.

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	$185,000	-
Families	$163,202	$212,670
Households	$85,364	$140,662
Non Families	$53,184	$92,067

$64,110

Average Income

$85,364

Median Household Income

21.8%

Poverty Rate