🇺🇸 United States ZIP Code

STANDARD

15904

Johnstown

ZIP Code 15904 is a standard zip code serving Johnstown, Johnstown, Pennsylvania (PA), in Cambria County, United States. It has an estimated population of 16,608 with a median household income of $46,377. The area falls within the America/New_York timezone.

Median Household Income vs. National Average

Location

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

Coordinates

Latitude: 40.285000
Longitude: -78.865400

Geographic Details

Land Area: 30.67 mi²
Water Area: 0.20 mi²
Population Density: 541.0 people per mi² (70th percentile)
Bounding Box: 40.379474°N, 40.242579°S, -78.780544°E, -78.928159°W

With 16,608 residents spread across 30.67 square miles, this area has a population density of 541.0 people per square mile.

Demographics

16,608

Population

75th percentile

$46,377

Median Income

45th percentile

$124,800

Median Home Value

50th percentile

30.67 mi²

Land Area

The median household income in 15904 is $46,377, and the median home value is $124,800.

Housing

7,309

Total Units

6,765

Occupied Units

92.6%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Johnstown, PA.

15901

Johnstown

15902

Johnstown

15905

Johnstown

15906

Johnstown

15907

Johnstown

15909

Johnstown

15915

Johnstown

Similar ZIP Codes in Pennsylvania

ZIP codes with similar median household income in Pennsylvania.

15557

Rockwood

$47,683

18518

Old Forge

$49,347

18603

Berwick

$42,966

18417

Equinunk

$41,290

15717

Blairsville

$48,675

16667

Osterburg

$43,162

15027

Conway

$42,742

16822

Beech Creek

$50,294

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.