Louisville

County:: Boulder County
County Seat:: No
Area (mi²):: 7.971
State:: Colorado

Louisville is a city located in Boulder County, Colorado. Louisville has a 2025 population of 19,867. Louisville is currently declining at a rate of -1.3% annually and its population has decreased by -6.17% since the most recent census, which recorded a population of 21,174 in 2020.

The average household income in Louisville is $178,685 with a poverty rate of 4.94%. The median age in Louisville is 41.8 years: 40.4 years for males, and 43.2 years for females.

Demographics

The racial composition of Louisville includes 81.76% White, 5.22% Asian, and smaller percentages for Black or African American, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Asian

Black or African American

Other race

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	16,996	81.76%
Two or more races	2,413	11.61%
Asian	1,086	5.22%
Black or African American	180	0.87%
Other race	108	0.52%
Native American	5	0.02%
Native Hawaiian or Pacific Islander	0	0%

Louisville Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Louisville's average per capita income is $86,423. Household income levels show a median of $149,159. The poverty rate stands at 4.94%.

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	$205,988	-
Families	$182,712	$216,502
Households	$149,159	$178,685
Non Families	$72,955	$96,429

$86,423

Average Income

$149,159

Median Household Income

4.94%

Poverty Rate