PlainZIP

South El Monte, CA · standard

ZIP Code 91733

Los Angeles County, California - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

43,896
2,538/sq mi
$68,278
Median income
$621,800
Median home value
11.7%
Bachelor's or higher

The verdict

South El Monte pairs a below-median household income with top-decile home values, in a suburban-density, mixed-tenure area.

44th pct
household income, US ZIPs
Top 8%
home value, US ZIPs
2,538
people per sq mi
42%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 91733 against every reporting US ZIP.

ZIP code 91733 is a densely settled ZIP (a standard USPS delivery area) in South El Monte, Los Angeles County, California, with 43,896 residents across 17.3 square miles, a density of 2,538 people per square mile, in the Los Angeles time zone.

ZIP 91733 reports a modest median household income of $68,278 (33% below the California average), while per-capita income is $23,590. 19.3% of residents live below the poverty line, and the unemployment rate reads 7.8%. On housing, the median home value is $621,800 (20% below the state average) with median rent at $1,681 per month, and 41.7% of occupied units are owner-occupied.

Formal educational attainment runs low here: just 11.7% of adults hold a bachelor's degree or higher, the median age is 38.2, and the average commute is 27 minutes. A geography-based comparison follows: 10 ZIP codes within about 10 miles of 91733, plus 6 more within Los Angeles County, give a clearer read than the national average alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 91733

Top 5 sectors by establishment count in South El Monte, CA

Which industries have the most business establishments in ZIP 91733.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 91733, South El Monte, CA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

43,896

Population

17.3

Area (sq mi)

2,538

People / sq mi

Los Angeles

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 91733?

38.2

Median Age

50.2%

Male

49.8%

Female

49.7%

Foreign-Born

White 9.0%
African American 0.7%
Asian 23.6%
American Indian or Alaska Native 0.9%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 17.5%
Hispanic or Latino 72.4%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$68,278

Median Household Income

-33% vs state

$23,590

Per Capita Income

19.3%

Poverty Rate

7.8%

Unemployment Rate

27.3 min

Mean Commute Time

How ZIP 91733 ranks nationally

South El Monte, CA household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$68,278 44th percentile higher than 44% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). This entry sits in this band. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 36.2%
Bachelor's Degree or Higher 11.7%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

11,279

Total Housing Units

10,922

Occupied Units

357

Vacant Units

3.75

Avg Household Size

Occupancy Type

Owner 41.7%
Renter 58.3%

$621,800

Median Home Value

-20% vs state

$1,681

Median Rent

1960

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+10.4%

YoY Change (2024)

435

HPI Index (2000 = 100)

+335%

Total Change Since 2000

Home values in ZIP 91733 have increased 10.4% over the past year (2024). Since 2000, this ZIP has seen +335% cumulative appreciation.

Year Annual Change HPI Index
2020 +4.9% 309
2021 +8.3% 334
2022 +18.1% 394
2023 -0.2% 393
2024 +10.4% 435

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 1,852 business establishments in ZIP 91733, employing approximately 18,790 people with a combined annual payroll of $1,057,025,000.

1,852

Businesses

18,790

Employees

$1.1B

Annual Payroll

16

Industry Sectors

Industry Establishments % of Total
Wholesale trade 558 30.1%
Manufacturing 311 16.8%
Retail trade 224 12.1%
Construction 142 7.7%
Other services (except public administration) 113 6.1%
Transportation and warehousing 110 5.9%
Accommodation and food services 103 5.6%
Health care and social assistance 85 4.6%
Professional, scientific, and technical services 58 3.1%
Administrative and support and waste management and remediation services 48 2.6%
Real estate and rental and leasing 46 2.5%
Finance and insurance 22 1.2%
Educational services 10 0.5%
Arts, entertainment, and recreation 8 0.4%
Information 7 0.4%
Utilities 3 0.2%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 91733 vs 91731 →

ZIP 91733 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 91733 ranks #4 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 91733 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 91733 ranks #null of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
91731 El Monte, CA 29,591 2.4 mi
91770 Rosemead, CA 62,097 2.2 mi
91780 Temple City, CA 34,332 3.9 mi
90601 Whittier, CA 31,974 2.9 mi
91755 Monterey Park, CA 27,496 3.5 mi
91732 El Monte, CA 61,386 2.9 mi
91746 La Puente, CA 30,485 3.8 mi
90606 Whittier, CA 32,396 4.7 mi
91776 San Gabriel, CA 38,475 3.9 mi
90640 Montebello, CA 62,549 3.9 mi

More ZIP Codes in Los Angeles County

90650 standard
Norwalk, CA
Pop: 105,549
90011 standard
Los Angeles, CA
Pop: 103,892
91331 standard
Pacoima, CA
Pop: 103,689
90201 standard
Bell Gardens, CA
Pop: 101,279
90280 standard
South Gate, CA
Pop: 94,396
90805 standard
Long Beach, CA
Pop: 93,524

Related Areas

Los Angeles County South El Monte, CA California

Frequently Asked Questions

What county is ZIP code 91733 in? ▼
ZIP code 91733 (South El Monte) is located in Los Angeles County, California. Los Angeles County contains multiple ZIP codes, see the full list at /counties/los-angeles-ca.
What is the population of ZIP code 91733? ▼
ZIP code 91733 in South El Monte, CA has a population of 43,896 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 91733? ▼
The median household income in ZIP 91733 is $68,278, which is 10% below the national average of $76,288.
What is the average home value in ZIP 91733? ▼
The median home value in ZIP 91733 is $621,800, which is 124% above the national average of $278,155.
What is the demographic makeup of ZIP 91733? ▼
The largest racial group in ZIP 91733 is Asian at 23.6%. Hispanic or Latino residents make up 72.4% of the population.
How many businesses are in ZIP code 91733? ▼
ZIP code 91733 has 1,852 business establishments employing approximately 18,790 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 91733? ▼
The top industries by establishment count in ZIP 91733 are: Wholesale trade (558), Manufacturing (311), Retail trade (224). There are 16 industry sectors represented in total.
How have home values changed in ZIP code 91733? ▼
According to the FHFA House Price Index, home values in ZIP 91733 increased by 10.4% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 335%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 91733? ▼
In ZIP code 91733, 36.2% of residents aged 25+ have a high school diploma or higher, and 11.7% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 91733? ▼
The mean commute time for workers in ZIP code 91733 is 27.3 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 91733? ▼
In ZIP code 91733, approximately 41.7% of occupied housing units are owner-occupied and 58.3% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 91733? ▼
The poverty rate in ZIP code 91733 is 19.3% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.