🇺🇸 United States ZIP Code

STANDARD

40503

Lexington

ZIP Code 40503 is a standard zip code serving Lexington, Lexington, Kentucky (KY), in Fayette County, United States. It has an estimated population of 28,003 with a median household income of $52,303. The area falls within the America/New_York timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: Kentucky (KY)
County: Fayette
City: Lexington
Timezone: America/New_York

Coordinates

Latitude: 38.001000
Longitude: -84.528200

Geographic Details

Land Area: 8.85 mi²
Population Density: 3166.0 people per mi² (90th percentile)
Bounding Box: 38.035290°N, 37.976329°S, -84.494901°E, -84.571578°W

With 28,003 residents spread across 8.85 square miles, this area has a population density of 3166.0 people per square mile.

Demographics

28,003

Population

85th percentile

$52,303

Median Income

60th percentile

$164,800

Median Home Value

65th percentile

8.85 mi²

Land Area

The median household income in 40503 is $52,303, and the median home value is $164,800.

Housing

13,196

Total Units

12,264

Occupied Units

92.9%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Lexington, KY.

40502

Lexington

40504

Lexington

40505

Lexington

40506

Lexington

40507

Lexington

40508

Lexington

40509

Lexington

40510

Lexington

40511

Lexington

40512

Lexington

Similar ZIP Codes in Kentucky

ZIP codes with similar median household income in Kentucky.

40108

Brandenburg

$53,306

42740

Glendale

$57,692

42441

Nebo

$46,909

42040

Farmington

$54,407

42081

Smithland

$44,609

40391

Winchester

$45,765

40220

Louisville

$51,405

42409

Dixon

$45,167

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.