El Monte, CA 91731 ZIP Code Profile

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El Monte, CA

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ZIP Code 91731: Basic Data & USPS Preferred City Name

Preferred Name, USPS
El Monte, CA 91731

  • ZIP Code Type: STANDARD
  • County: Los Angeles County
  • Centroid: Latitude 34.077, Longitude -118.041
  • Time Zone: Pacific Time Zone (UTC -8 hours)
  • Observes DST: Yes
  • Businesses Addresses: 1,716
  • PO Box Addresses: 0
  • Residential Addresses: 7,871
    • Multi-Family Addresses: 2,510
    • Single Family Addresses: 5,361

The ZIP Code maps and database are updated 4 times per year.
Database updated: February 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting demographic data.


91731 ZIP Code Map

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El Monte, CA 91731 Data & Demographics (As of July 1, 2017)


Total Population 29,514
Daytime Population: Workers 17,653
Daytime Population: Residents 17,815
Total Daytime Population (TDP) 35,468
Ratio TDP/Total Population1 1.20
Population in Households 29,277
Population in Familes 25,322
Population in Group Qrtrs 237
Population Density2 8,169
Diversity Index3 89


Median Household Income $40,351
Average Household Income $52,971
Per Capita Income $14,601


Total Housing Units 8,372 (100%)
Owner Occupied HU 3,114 (37.2%)
Renter Occupied HU 4,829 (57.7%)
Vacant Housing Units 429 ( 5.1%)
Median Home Value $404,113
Average Home Value $421,572


Total Households 7,943
Average Household Size 3.69
Family Households 6,297
Average Family Size 4
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 0.48% 0.55%
Households 0.43% 0.51%
Families 0.43% 0.52%
Median Household Income   0.91%
Per Capita Income   2.26%

El Monte, CA 91731 - Peer Comparisons by Rank and Percentile

The table below compares 91731 to the other 1,761 ZIP Codes in California by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 620 65th
Population Density # 244 86th
Diversity Index # 103 94th
Median Household Income # 1430 19th
Per Capita Income # 1614 8th

Additional comparisons and rankings can be made with a VERY EASY TO USE California Census Data Comparison Tool.

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