🇺🇸 United States ZIP Code

STANDARD

17603

Lancaster

ZIP Code 17603 is a standard zip code serving Lancaster, Lancaster, Pennsylvania (PA), in Lancaster County, United States. It has an estimated population of 61,973 with a median household income of $44,752. The area falls within the America/New_York timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: Pennsylvania (PA)
County: Lancaster
City: Lancaster
Timezone: America/New_York

Coordinates

Latitude: 40.009100
Longitude: -76.367100

Geographic Details

Land Area: 29.81 mi²
Water Area: 0.39 mi²
Population Density: 2079.0 people per mi² (85th percentile)
Bounding Box: 40.057678°N, 39.952495°S, -76.289062°E, -76.452971°W

With 61,973 residents spread across 29.81 square miles, this area has a population density of 2079.0 people per square mile.

Demographics

61,973

Population

95th percentile

$44,752

Median Income

40th percentile

$148,700

Median Home Value

55th percentile

29.81 mi²

Land Area

The median household income in 17603 is $44,752, and the median home value is $148,700.

Housing

26,317

Total Units

24,818

Occupied Units

94.3%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Lancaster, PA.

17601

Lancaster

17602

Lancaster

17604

Lancaster

17605

Lancaster

17606

Lancaster

17607

Lancaster

17608

Lancaster

17611

Lancaster

17622

Lancaster

17699

Lancaster

Similar ZIP Codes in Pennsylvania

ZIP codes with similar median household income in Pennsylvania.

16417

Girard

$50,101

17084

Reedsville

$45,256

18615

Falls

$51,094

15112

East Pittsburgh

$40,431

18832

Monroeton

$47,198

16602

Altoona

$39,170

16373

Emlenton

$48,098

15618

Avonmore

$42,845

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.