🇺🇸 United States ZIP Code

STANDARD

91770

Rosemead

ZIP Code 91770 is a standard zip code serving Rosemead, Rosemead, California (CA), in Los Angeles County, United States. It has an estimated population of 62,097 with a median household income of $47,373. The area falls within the America/Los_Angeles timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: California (CA)
County: Los Angeles
City: Rosemead
Timezone: America/Los_Angeles

Coordinates

Latitude: 34.065800
Longitude: -118.085300

Geographic Details

Land Area: 6.42 mi²
Water Area: 0.05 mi²
Population Density: 9668.0 people per mi² (95th percentile)
Bounding Box: 34.095017°N, 34.029609°S, -118.055768°E, -118.108108°W

With 62,097 residents spread across 6.42 square miles, this area has a population density of 9668.0 people per square mile.

Demographics

62,097

Population

95th percentile

$47,373

Median Income

45th percentile

$414,000

Median Home Value

90th percentile

6.42 mi²

Land Area

The median household income in 91770 is $47,373, and the median home value is $414,000.

Housing

17,258

Total Units

16,588

Occupied Units

96.1%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Rosemead, CA.

91771

Rosemead

91772

Rosemead

Similar ZIP Codes in California

ZIP codes with similar median household income in California.

92252

Joshua Tree

$42,338

95673

Rio Linda

$53,429

92116

San Diego

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93202

Armona

$40,484

91206

Glendale

$52,570

95991

Yuba City

$42,589

94571

Rio Vista

$54,223

93221

Exeter

$44,463

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.