Louisville ZIP Codes — Boulder County, CO

There is one unique ZIP code in Louisville, Colorado and it is 80027. Area code: 303.

ZIP codes

18.63

sq mi land

0.19

sq mi water

303

area code

Louisville, CO ZIP code map

About Louisville, CO

Louisville, Colorado, is a charming city located in Boulder County, known for its vibrant community and picturesque surroundings. Nestled near the foothills of the Rocky Mountains, Louisville offers a unique blend of urban amenities and access to nature. Its small-town feel combined with growth and development makes it a desirable place for families and professionals alike.

Location & geography

Louisville is situated approximately 16 miles northeast of Boulder and around 25 miles northwest of Denver, offering easy access to larger urban centers. The city covers a total land area of 18.63 square miles, complemented by a water area of 0.19 square miles, providing a diverse landscape that includes parks and recreational areas. The terrain features a mix of flatlands and gentle rolling hills, making it inviting for outdoor activities.

Community & economy

The character of Louisville is marked by a strong sense of community and an emphasis on sustainability, with many local events and farmers' markets. The economy is bolstered by various industries, including technology and renewable energy, fostering innovation and growth. Daily life in Louisville is vibrant, highlighted by an array of dining, shopping, and recreational opportunities that cater to residents and visitors.

Transportation

Major transportation routes include the US Highway 36, which connects Louisville to Denver and Boulder, facilitating easy commuter access. The nearest airports are Denver International Airport and Boulder Municipal Airport, enhancing connectivity for both personal and professional travel. Public transportation options are also available, providing residents with additional commuting flexibility.

History

Founded in 1877 during the Colorado Gold Rush, Louisville's early economy was rooted in coal mining and agriculture. Over the years, the city has transitioned to a more diverse economic landscape, incorporating technology and service industries into its fabric. Notable events in its history include its incorporation as a city in 1882 and the efforts in recent decades to develop a community-oriented environment.

Did you know?

One surprising fact about Louisville is its tradition of hosting the annual Louisville Street Faire, which celebrates local culture and brings the community together with music, food, and fun for all ages. Additionally, Louisville has been recognized for its commitment to environmentally friendly practices, earning a reputation as one of the best places to live in the United States.

ZIP codes for Louisville, CO (1)

ZIP code	City	County	Map
80027	Louisville	Boulder	View map

Demographics & statistics

34,161

Population

39.2

Median age

$139,412

Median household income

$65,718

Per capita income

$767,800

Median home value

$2,156

Median monthly rent

66.2%

Home ownership

4.1%

Poverty rate

3.3%

Unemployment

8,729

Housing units

69.8%

Bachelor's or higher

Age distribution

Male Female

856

Under 5

818

1,371

5–9

1,311

1,402

10–14

1,340

1,330

15–19

1,271

741

20–24

708

1,990

25–34

1,903

2,620

35–44

2,504

2,661

45–54

2,543

1,274

55–59

1,218

980

60–64

936

1,486

65–74

1,421

471

75–84

451

284

85+

271

← Male

Female →

Age summary

Group	Count	%
Under 18	8,748	25.6%
18 and over	25,413	74.4%
65 and over	4,384	12.8%
Median age	39.2 years

Race & ethnicity

White 74.7%

Two or more races 8.7%

Asian 8.6%

Hispanic or Latino 5.8%

Other race 1.1%

Black or African American 0.8%

American Indian / Alaska Native 0.2%

Group	Count	%
White	27,089	74.7%
Two or more races	3,168	8.7%
Asian	3,115	8.6%
Hispanic or Latino	2,102	5.8%
Other race	417	1.1%
Black or African American	301	0.8%
American Indian / Alaska Native	62	0.2%

Household income

Under $10k 2.7%

$10k–$15k 0.7%

$15k–$25k 1.5%

$25k–$35k 3.7%

$35k–$50k 6.2%

$50k–$75k 8.8%

$75k–$100k 11.6%

$100k–$150k 17.5%

$150k–$200k 14.8%

$200k+ 32.5%

Range	% of households
Under $10k	2.7%
$10k–$15k	0.7%
$15k–$25k	1.5%
$25k–$35k	3.7%
$35k–$50k	6.2%
$50k–$75k	8.8%
$75k–$100k	11.6%
$100k–$150k	17.5%
$150k–$200k	14.8%
$200k+	32.5%
Median income	$139,412

Housing

Home values

Under $50k 1.7%

$50k–$100k 0.9%

$100k–$150k 0.2%

$150k–$200k 0.2%

$200k–$300k 1.3%

$300k–$500k 7.5%

$500k–$1M 69.7%

$1M+ 18.5%

Housing overview

Metric	Value
Median home value	$767,800
Median rent / month	$2,156
Owner occupied	66.2%
Renter occupied	33.8%
Vacant	2.9%
Single-family detached	64.2%
Large apartment buildings	9.3%
Mobile homes	1.2%
Median rooms	6.6
Avg household size (owned)	2.96

Year built

Era	%
2020 or later	0.2%
2010–2019	11.7%
2000–2009	10.7%
1990–1999	43.2%
1980–1989	19.9%
1970–1979	8.6%
1960–1969	1.6%
1950–1959	1.3%
1940–1949	0.1%
1939 or earlier	2.8%

Bedrooms

Size	% of units
No bedroom (studio)	1.5%
1 bedroom	11.5%
2 bedrooms	20.3%
3 bedrooms	27.4%
4 bedrooms	25.1%
5+ bedrooms	14.3%

Vehicles per household

Vehicles	% of households
No vehicle	3.3%
1 vehicle	27.7%
2 vehicles	45.0%
3 or more	24.0%

Heating fuel

Fuel type	%
Utility gas	76.5%
Electricity	21.5%
Propane / LP gas	0.8%
Solar	0.3%
No fuel used	0.7%

Households & families

Household type	Count	%
Married-couple family	7,564	60.0%
Cohabiting couple	656	5.2%
Male householder, no spouse	2,096	16.6%
Female householder, no spouse	2,294	18.2%
Households with children under 18	5,059	40.1%
Households with seniors (65+)	3,002	23.8%
Average household size	2.69

Marital status

Status	Male	Female
Never married	32.1%	22.3%
Married	58.7%	61.3%
Separated	0.3%	0.9%
Widowed	1.3%	5.6%
Divorced	7.6%	9.9%

Education

Less than 9th grade 0.9%

Some HS, no diploma 0.9%

HS graduate 8.6%

Some college, no degree 14.1%

Associate's degree 5.7%

Bachelor's degree 36.2%

Graduate / professional 33.6%

Metric	%
HS diploma or higher	98.2%
Bachelor's or higher	69.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	591	6.0%
Kindergarten	622	6.4%
Elementary school	4,340	44.4%
High school	2,311	23.6%
College / grad school	1,915	19.6%

Employment

Industry of employment

Education & healthcare 25.3%

Professional & management 23.3%

Manufacturing 10.3%

Retail trade 8.7%

Arts, food & hospitality 6.1%

Construction 5.8%

Finance & real estate 5.1%

Information 4.6%

Other services 3.3%

Public administration 2.7%

Transportation & utilities 2.3%

Wholesale trade 2.0%

Agriculture & mining 0.5%

Occupation

Category	%
Management, business & arts	64.4%
Service	9.1%
Sales & office	16.0%
Natural resources & construction	4.7%
Production & transportation	5.7%

Employment type

Type	%
Private sector	80.7%
Government	12.1%
Self-employed	7.2%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	56.1%
Carpool	7.5%
Public transit	3.0%
Walk	2.2%
Other means	2.3%
Avg commute (minutes)	24.4

Poverty

All people 4.1%

Under 18 years 2.4%

18 and over 4.7%

Married-couple families 1.5%

Female-led households 8.8%

Income support

Source	% of households
Social Security	21.1%
Retirement income	20.9%
Supplemental Security	2.3%
Cash public assistance	2.4%
Food stamps / SNAP	3.5%

Health indicators

Condition	%
High blood pressure	19.1%
High cholesterol	26.5%
Heart disease	3.6%
Stroke	1.7%
Asthma	9.1%
Arthritis	16.0%
Kidney disease	1.8%
Pulmonary disease	3.3%
Cancer	5.6%

Behavior / access	%
Binge drinking	19.6%
No physical activity	10.6%
Less than 7 hrs sleep	23.8%
Fair or poor health	6.6%
Poor mental health	11.9%
Poor physical health	6.2%
No health insurance	7.9%
Visited doctor (checkup)	64.7%
Visited dentist	76.0%
Cholesterol screening	91.8%
Teeth loss	5.5%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,101	4.3%

Disability	%
Any disability	7.4%
Under 18	2.3%
18–64 years	5.9%
65 and over	25.4%

Health insurance coverage

Type	%
Private insurance	85.7%
Public insurance	19.9%
Uninsured under 19	2.4%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	32,487	95.1%
Spanish	1,025	3.2%
Other Indo-European	164	0.5%
Asian & Pacific Islander	113	0.3%
Other languages	736	2.3%

Place of birth & citizenship

Origin	Count	%
Native born (US)	30,059	88.0%
Born in same state	29,304	85.8%
Born in different state	11,269	33.0%
Foreign born	755	2.2%
Naturalized citizen	4,102	12.0%
Not a US citizen	2,087	50.9%

Ancestry

Ancestry	Count	%
French	5,106	14.9%
Italian	4,271	12.5%
English	1,006	2.9%
Arab	887	2.6%
Polish	621	1.8%

Ancestry	Count	%
German	372	1.1%
Irish	266	0.8%
Dutch	224	0.7%
Norwegian	213	0.6%

Technology access

Metric	% of households
Computer access	36.9%
Internet access	98.0%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions

What ZIP codes does Louisville, CO have?

Louisville, CO has one ZIP code: 80027. Each ZIP code serves a distinct delivery area within the city and surrounding region.