🇺🇸 United States ZIP Code

STANDARD

94583

San Ramon

ZIP Code 94583 is a standard zip code serving San Ramon, San Ramon, California (CA), in Contra Costa County, United States. It has an estimated population of 34,859 with a median household income of $119,623. The area falls within the America/Los_Angeles timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: California (CA)
County: Contra Costa
City: San Ramon
Timezone: America/Los_Angeles

Coordinates

Latitude: 37.756200
Longitude: -121.952200

Geographic Details

Land Area: 14.95 mi²
Population Density: 2331.0 people per mi² (85th percentile)
Bounding Box: 37.816590°N, 37.718629°S, -121.917372°E, -122.049916°W

With 34,859 residents spread across 14.95 square miles, this area has a population density of 2331.0 people per square mile.

Demographics

34,859

Population

90th percentile

$119,623

Median Income

95th percentile

$641,500

Median Home Value

95th percentile

14.95 mi²

Land Area

The median household income in 94583 is $119,623, and the median home value is $641,500. This places the area in the top 25% nationally for household income.

Housing

13,282

Total Units

12,742

Occupied Units

95.9%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in San Ramon, CA.

94582

San Ramon

Similar ZIP Codes in California

ZIP codes with similar median household income in California.

95762

El Dorado Hills

$119,382

95135

San Jose

$124,288

94402

San Mateo

$107,124

91105

Pasadena

$109,922

95014

Cupertino

$127,870

94505

Discovery Bay

$111,290

92694

Ladera Ranch

$127,906

93619

Clovis

$106,235

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.