🇺🇸 United States ZIP Code

STANDARD

95121

San Jose

ZIP Code 95121 is a standard zip code serving San Jose, San Jose, California (CA), in Santa Clara County, United States. It has an estimated population of 37,469 with a median household income of $82,001. The area falls within the America/Los_Angeles timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: California (CA)
County: Santa Clara
City: San Jose
Timezone: America/Los_Angeles

Coordinates

Latitude: 37.304200
Longitude: -121.809900

Geographic Details

Land Area: 4.43 mi²
Population Density: 8454.0 people per mi² (95th percentile)
Bounding Box: 37.320797°N, 37.284065°S, -121.771625°E, -121.843983°W

With 37,469 residents spread across 4.43 square miles, this area has a population density of 8454.0 people per square mile.

Demographics

37,469

Population

90th percentile

$82,001

Median Income

90th percentile

$443,600

Median Home Value

95th percentile

4.43 mi²

Land Area

The median household income in 95121 is $82,001, and the median home value is $443,600. This places the area in the top 25% nationally for household income.

Housing

9,625

Total Units

9,352

Occupied Units

97.2%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in San Jose, CA.

95025

San Jose

95101

San Jose

95103

San Jose

95106

San Jose

95108

San Jose

95109

San Jose

95110

San Jose

95111

San Jose

95112

San Jose

95113

San Jose

Similar ZIP Codes in California

ZIP codes with similar median household income in California.

91504

Burbank

$73,151

94538

Fremont

$85,945

94901

San Rafael

$72,311

94111

San Francisco

$89,722

92337

Fontana

$69,804

94005

Brisbane

$78,542

94115

San Francisco

$76,952

94015

Daly City

$76,978

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.