🇺🇸 United States ZIP Code

STANDARD

05403

South Burlington

ZIP Code 05403 is a standard zip code serving South Burlington, South Burlington, Vermont (VT), in Chittenden County, United States. It has an estimated population of 17,593 with a median household income of $65,091. The area falls within the America/New_York timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: Vermont (VT)
County: Chittenden
City: South Burlington
Timezone: America/New_York

Coordinates

Latitude: 44.451300
Longitude: -73.179600

Geographic Details

Land Area: 16.40 mi²
Water Area: 0.19 mi²
Population Density: 1073.0 people per mi² (75th percentile)
Bounding Box: 44.500970°N, 44.405378°S, -73.134698°E, -73.233424°W

With 17,593 residents spread across 16.40 square miles, this area has a population density of 1073.0 people per square mile.

Demographics

17,593

Population

75th percentile

$65,091

Median Income

80th percentile

$266,800

Median Home Value

80th percentile

16.40 mi²

Land Area

The median household income in 05403 is $65,091, and the median home value is $266,800. This places the area in the top 25% nationally for household income.

Housing

8,285

Total Units

7,849

Occupied Units

94.7%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in South Burlington, VT.

05407

South Burlington

Similar ZIP Codes in Vermont

ZIP codes with similar median household income in Vermont.

05032

Bethel

$57,478

05036

Brookfield

$66,875

05039

Corinth

$60,750

05045

Fairlee

$61,875

05048

Hartland

$62,438

05061

Randolph Center

$61,645

05065

Sharon

$56,731

05077

Tunbridge

$58,929

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.