Louisville Flag

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 2026 population of 20,614. Louisville is currently declining at a rate of -0.47% annually and its population has decreased by -2.79% since the most recent census, which recorded a population of 21,205 in 2020.

The median household income in Louisville is $147,319 with a poverty rate of 4.52%. The median age in Louisville is 42.6 years: 40.2 years for males, and 44.6 years for females. For every 100 females there are 104.7 males.

20.6K
Total Population
2,586
Density (mi²)
-98 -0.47%
Growth

Louisville Population

Louisville Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202620,614-98-0.47%
202520,712-99-0.48%
202420,8112771.35%
202320,534230.11%
202220,511-364-1.74%
202120,875-369-1.74%
202021,2051,97410.26%
201919,231-230-1.18%
201819,461460.24%
201719,415-128-0.65%
201619,543900.46%
201519,4532091.09%
201419,2441911%
201319,0532641.41%
201218,7891991.07%
201118,5901780.97%
201018,412360.2%
200018,9376,57653.2%
199012,3616,768121.01%
19805,59300%

Median Age

Overall: 42.6 years
Female: 44.6 years
Male: 40.2 years

Louisville Adults

There are 15,614 adults, (3,493 of whom are seniors) in Louisville.

Sex Ratio

Female: 10,155 (48.9%)
Male: 10,631 (51.1%)

Demographics

The racial composition of Louisville includes 80.45% White, 4.07% Asian, and smaller percentages for Black or African American, other race, Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White16,72280.45%
Two or more races2,78913.42%
Asian8474.07%
Black or African American2911.4%
Other race1320.64%
Native American50.02%
Race
Population ↓
Percentage (of total)
Two or more races1,5977.68%
White3851.85%
Other race990.48%
Asian770.37%
Native American20.01%
Race
Population ↓
Percentage (of total)
White16,33778.6%
Two or more races1,1925.73%
Asian7703.7%
Black or African American2911.4%
Other race330.16%
Native American30.01%

Louisville Marital Status

Economics and Income Statistics

Louisville 's average per capita income is $88,264. Household income levels show a median of $147,319. The poverty rate stands at 4.52%.

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$206,327-
Families$183,043$220,200
Households$147,319$182,273
Non Families$82,404$101,110

$88,264

Average Income

$147,319

Median Household Income

4.52%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)