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 and multiracial populations.

Population by Race

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%

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