🇺🇸 United States ZIP Code

STANDARD

19401

Norristown

ZIP Code 19401 is a standard zip code serving Norristown, Norristown, Pennsylvania (PA), in Montgomery County, United States. It has an estimated population of 41,753 with a median household income of $48,791. The area falls within the America/New_York timezone.

Median Household Income vs. National Average

Location

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

Coordinates

Latitude: 40.124500
Longitude: -75.330400

Geographic Details

Land Area: 6.03 mi²
Water Area: 0.10 mi²
Population Density: 6922.0 people per mi² (95th percentile)
Bounding Box: 40.158473°N, 40.105189°S, -75.298153°E, -75.365732°W

With 41,753 residents spread across 6.03 square miles, this area has a population density of 6922.0 people per square mile.

Demographics

41,753

Population

95th percentile

$48,791

Median Income

50th percentile

$172,700

Median Home Value

65th percentile

6.03 mi²

Land Area

The median household income in 19401 is $48,791, and the median home value is $172,700.

Housing

17,061

Total Units

15,361

Occupied Units

90.0%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Norristown, PA.

19403

Norristown

19404

Norristown

Similar ZIP Codes in Pennsylvania

ZIP codes with similar median household income in Pennsylvania.

15327

Dilliner

$42,143

16673

Roaring Spring

$45,048

15936

Hooversville

$49,688

15235

Pittsburgh

$50,234

15666

Mount Pleasant

$46,993

15024

Cheswick

$53,686

16641

Gallitzin

$44,402

16041

Karns City

$49,896

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.