🇺🇸 United States ZIP Code

STANDARD

80027

Louisville

ZIP Code 80027 is a standard zip code serving Louisville, Louisville, Colorado (CO), in Boulder County, United States. It has an estimated population of 31,034 with a median household income of $95,635. The area falls within the America/Denver timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: Colorado (CO)
County: Boulder
City: Louisville
Timezone: America/Denver

Coordinates

Latitude: 39.978900
Longitude: -105.145600

Geographic Details

Land Area: 19.43 mi²
Water Area: 0.20 mi²
Population Density: 1598.0 people per mi² (80th percentile)
Bounding Box: 40.000136°N, 39.913658°S, -105.109265°E, -105.238933°W

With 31,034 residents spread across 19.43 square miles, this area has a population density of 1598.0 people per square mile.

Demographics

31,034

Population

90th percentile

$95,635

Median Income

95th percentile

$381,300

Median Home Value

90th percentile

19.43 mi²

Land Area

The median household income in 80027 is $95,635, and the median home value is $381,300. This places the area in the top 25% nationally for household income.

Housing

12,648

Total Units

12,089

Occupied Units

95.6%

Occupancy Rate

Similar ZIP Codes in Colorado

ZIP codes with similar median household income in Colorado.

80138

Parker

$99,316

80018

Aurora

$95,843

80130

Littleton

$105,817

80542

Mead

$93,790

80118

Larkspur

$107,882

80433

Conifer

$97,083

80016

Aurora

$101,280

81637

Gypsum

$83,657

Frequently Asked Questions

What information is available for each ZIP code?

Each ZIP code page shows city, state, county, geographic coordinates, timezone, population, median household income, median home value, housing units, land area, population density, commute time, educational attainment, area codes, and ZIP code type (Standard, PO Box, or Unique).

What are the different types of ZIP codes?

There are three types of ZIP codes: Standard (residential and commercial delivery areas), PO Box (assigned to post office box sections), and Unique (assigned to a single high-volume address like a government agency or large company). Standard ZIP codes are the most common.

How often is ZIP code data updated?

ZIP code assignments are updated quarterly by the USPS. Demographic data comes from the US Census Bureau's American Community Survey (ACS), which releases new 5-year estimates annually. ZipFYI updates its data to reflect the latest available information.

What is population density and why does it matter?

Population density measures the number of people per square mile in a ZIP code area. It helps identify urban vs. rural areas, affects real estate values, impacts service availability, and is used in market analysis. Dense urban ZIP codes may have 50,000+ people per square mile.

How are ZIP code boundaries determined?

ZIP code boundaries are determined by the USPS based on mail delivery routes, not political or geographic boundaries. They follow carrier routes and may cross city, county, or even state lines. Boundaries can change when the USPS reorganizes delivery operations.

What does median household income tell me about a ZIP code?

Median household income is the middle value when all household incomes in a ZIP code are sorted. Half of households earn more and half earn less. It is a better indicator of typical earnings than average income, which can be skewed by very high or very low outliers.