🇺🇸 United States ZIP Code

STANDARD

54904

Oshkosh

ZIP Code 54904 is a standard zip code serving Oshkosh, Oshkosh, Wisconsin (WI), in Winnebago County, United States. It has an estimated population of 20,623 with a median household income of $67,145. The area falls within the America/Chicago timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: Wisconsin (WI)
County: Winnebago
City: Oshkosh
Timezone: America/Chicago

Coordinates

Latitude: 44.030400
Longitude: -88.607000

Geographic Details

Land Area: 74.67 mi²
Water Area: 0.67 mi²
Population Density: 276.0 people per mi² (65th percentile)
Bounding Box: 44.170235°N, 43.894492°S, -88.520920°E, -88.720183°W

With 20,623 residents spread across 74.67 square miles, this area has a population density of 276.0 people per square mile.

Demographics

20,623

Population

80th percentile

$67,145

Median Income

80th percentile

$180,100

Median Home Value

70th percentile

74.67 mi²

Land Area

The median household income in 54904 is $67,145, and the median home value is $180,100. This places the area in the top 25% nationally for household income.

Housing

8,876

Total Units

8,348

Occupied Units

94.1%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Oshkosh, WI.

54901

Oshkosh

54902

Oshkosh

54903

Oshkosh

54906

Oshkosh

Similar ZIP Codes in Wisconsin

ZIP codes with similar median household income in Wisconsin.

53001

Adell

$65,500

53002

Allenton

$65,583

53004

Belgium

$72,262

53006

Brownsville

$60,833

53010

Campbellsport

$61,231

53011

Cascade

$59,071

53013

Cedar Grove

$65,795

53015

Cleveland

$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.