🇺🇸 United States ZIP Code

STANDARD

92173

San Ysidro

ZIP Code 92173 is a standard zip code serving San Ysidro, San Ysidro, California (CA), in San Diego County, United States. It has an estimated population of 29,429 with a median household income of $36,621. The area falls within the America/Los_Angeles timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: California (CA)
County: San Diego
City: San Ysidro
Timezone: America/Los_Angeles

Coordinates

Latitude: 32.562600
Longitude: -117.043000

Geographic Details

Land Area: 5.06 mi²
Water Area: 0.21 mi²
Population Density: 5817.0 people per mi² (95th percentile)
Bounding Box: 32.569277°N, 32.539733°S, -117.011182°E, -117.076342°W

With 29,429 residents spread across 5.06 square miles, this area has a population density of 5817.0 people per square mile.

Demographics

29,429

Population

85th percentile

$36,621

Median Income

20th percentile

$254,300

Median Home Value

80th percentile

5.06 mi²

Land Area

The median household income in 92173 is $36,621, and the median home value is $254,300. This is below the national average for household income.

Housing

7,870

Total Units

7,563

Occupied Units

96.1%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in San Ysidro, CA.

92143

San Ysidro

Similar ZIP Codes in California

ZIP codes with similar median household income in California.

95207

Stockton

$39,301

95838

Sacramento

$38,271

96093

Weaverville

$40,172

93620

Dos Palos

$34,579

95388

Winton

$40,842

90019

Los Angeles

$42,043

93591

Palmdale

$41,972

93301

Bakersfield

$31,721

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.