🇺🇸 United States ZIP Code

STANDARD

94089

Sunnyvale

ZIP Code 94089 is a standard zip code serving Sunnyvale, Sunnyvale, California (CA), in Santa Clara County, United States. It has an estimated population of 19,245 with a median household income of $85,769. 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: Sunnyvale
Timezone: America/Los_Angeles

Coordinates

Latitude: 37.398300
Longitude: -122.000600

Geographic Details

Land Area: 5.99 mi²
Water Area: 0.01 mi²
Population Density: 3212.0 people per mi² (90th percentile)
Bounding Box: 37.439282°N, 37.388448°S, -121.986660°E, -122.041135°W

With 19,245 residents spread across 5.99 square miles, this area has a population density of 3212.0 people per square mile.

Demographics

19,245

Population

80th percentile

$85,769

Median Income

90th percentile

$168,300

Median Home Value

65th percentile

5.99 mi²

Land Area

The median household income in 94089 is $85,769, and the median home value is $168,300. This places the area in the top 25% nationally for household income.

Housing

7,530

Total Units

7,270

Occupied Units

96.5%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Sunnyvale, CA.

94085

Sunnyvale

94086

Sunnyvale

94087

Sunnyvale

94088

Sunnyvale

Similar ZIP Codes in California

ZIP codes with similar median household income in California.

92011

Carlsbad

$96,153

92708

Fountain Valley

$80,619

92629

Dana Point

$85,530

91765

Diamond Bar

$88,819

94041

Mountain View

$92,125

95918

Browns Valley

$76,583

94118

San Francisco

$82,857

91355

Valencia

$88,415

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.