91733 ZIP Code — South El Monte, CA

Los Angeles County, California

ZIP code 91733 is located in South El Monte, California, within Los Angeles County. It covers approximately 6.75 square miles and serves a population of 42,953 residents. This is a po box ZIP code in the Pacific (PT) timezone, served by area code 626.

About ZIP code 91733

The housing stock consists of a mix of housing types. Most homes were built in the 1950s, giving the area an established character. Median home value is $576,400. Renters make up the majority at 57%, typical of denser urban areas.

Median household income is $63,883. Poverty affects 19% of residents, above the national average. SNAP benefit usage at 21% of households reflects economic stress in the area.

The dominant occupation class is production, transportation, and material moving, with manufacturing as the leading industry. The average commute of 28 minutes is near the national average.

College attainment at 11% is below the national average, consistent with a trades and production-oriented local economy.

Notable community characteristics include Spanish spoken in 42% of households.

Overall, ZIP code 91733 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, and elevated reliance on food assistance.

42,953

population

6.75

sq mi land

PO Box

ZIP type

Pacific (PT)

timezone

91733 ZIP code map

Cities in ZIP code 91733

Below are the cities the US Postal Service accepts for ZIP code 91733. Using any city not on this list may result in mail delivery delays.

City	Status
South El Monte	Acceptable
South El Monte	Acceptable
South El Monte	Preferred

Nearby ZIP codes

91770 Rosemead (2.1 mi) 91735 El Monte (2.2 mi) 91731 El Monte (2.5 mi) 91772 Rosemead (2.7 mi) 91771 Rosemead (2.7 mi) 91732 El Monte (2.8 mi) 90601 Whittier (3.2 mi) 90601 Whittier (3.2 mi) 91746 La Puente (3.2 mi) 91755 Monterey Park (3.5 mi) 91776 San Gabriel (3.8 mi) 91780 Temple City (4 mi)

Demographics updated 05/2026

Population
Total population	42,953
Population density	6,363 / sq mi
State FIPS	06
County FIPS	037

Geography
Land area	6.75 sq mi
Water area	0.34 sq mi
Latitude	34.0448
Longitude	-118.0520
Timezone	Pacific (PT)
Area code	626

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	45.2%	36.2%	32.6%
$50k – $100k	30.7%	28.2%	27.7%
$100k – $200k	20.8%	24.5%	26.4%
Over $200k	3.3%	11.0%	13.3%

Demographics & statistics

42,953

Population

6,363

People per sq mi

37.9

Median age

$63,883

Median household income

$22,238

Per capita income

$576,400

Median home value

$1,600

Median monthly rent

43.4%

Home ownership

19.3%

Poverty rate

7.5%

Unemployment

5,044

Housing units

11.1%

Bachelor's or higher

Age distribution

Male Female

1,301

Under 5

1,240

997

5–9

951

1,560

10–14

1,488

1,602

15–19

1,528

1,664

20–24

1,586

3,141

25–34

2,994

2,817

35–44

2,686

3,157

45–54

3,009

1,422

55–59

1,356

1,361

60–64

1,297

1,778

65–74

1,694

779

75–84

742

411

85+

392

← Male

Female →

Age summary

Group	Count	%
Under 18	9,696	22.6%
18 and over	33,257	77.4%
65 and over	5,796	13.5%
Median age	37.9 years

Race & ethnicity

Hispanic or Latino 34.5%

Other race 27.5%

Asian 15.6%

White 13.6%

Two or more races 7.3%

American Indian / Alaska Native 0.7%

Black or African American 0.5%

Native Hawaiian / Pacific Islander 0.3%

Group	Count	%
Hispanic or Latino	22,592	34.5%
Other race	18,011	27.5%
Asian	10,224	15.6%
White	8,922	13.6%
Two or more races	4,808	7.3%
American Indian / Alaska Native	458	0.7%
Black or African American	323	0.5%
Native Hawaiian / Pacific Islander	207	0.3%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	45.2%	36.2%	32.6%
$50k – $100k	30.7%	28.2%	27.7%
$100k – $200k	20.8%	24.5%	26.4%
Over $200k	3.3%	11.0%	13.3%

Under $10k 2.9%

$10k–$15k 5.0%

$15k–$25k 9.2%

$25k–$35k 9.5%

$35k–$50k 13.8%

$50k–$75k 16.5%

$75k–$100k 14.5%

$100k–$150k 15.3%

$150k–$200k 7.3%

$200k+ 6.0%

Range	% of households
Under $10k	2.9%
$10k–$15k	5.0%
$15k–$25k	9.2%
$25k–$35k	9.5%
$35k–$50k	13.8%
$50k–$75k	16.5%
$75k–$100k	14.5%
$100k–$150k	15.3%
$150k–$200k	7.3%
$200k+	6.0%
Median income	$63,883

Housing

Home values

Under $50k 7.8%

$50k–$100k 1.1%

$100k–$150k 0.4%

$150k–$200k 0.5%

$200k–$300k 2.5%

$300k–$500k 21.4%

$500k–$1M 63.9%

$1M+ 2.4%

Housing overview

Metric	Value
Median home value	$576,400
Median rent / month	$1,600
Owner occupied	43.4%
Renter occupied	56.6%
Vacant	2.6%
Single-family detached	60.0%
Large apartment buildings	4.2%
Mobile homes	7.7%
Median rooms	4.4
Avg household size (owned)	3.80

Year built

Era	%
2020 or later	0.5%
2010–2019	3.7%
2000–2009	3.7%
1990–1999	7.3%
1980–1989	9.0%
1970–1979	11.9%
1960–1969	13.0%
1950–1959	31.2%
1940–1949	12.0%
1939 or earlier	7.7%

Bedrooms

Size	% of units
No bedroom (studio)	5.0%
1 bedroom	12.1%
2 bedrooms	37.0%
3 bedrooms	33.5%
4 bedrooms	10.3%
5+ bedrooms	2.1%

Vehicles per household

Vehicles	% of households
No vehicle	8.3%
1 vehicle	24.9%
2 vehicles	32.2%
3 or more	34.6%

Heating fuel

Fuel type	%
Utility gas	49.8%
Electricity	33.6%
Propane / LP gas	1.8%
Solar	0.8%
No fuel used	14.0%

Households & families

Household type	Count	%
Married-couple family	5,370	49.0%
Cohabiting couple	923	8.4%
Male householder, no spouse	2,139	19.5%
Female householder, no spouse	2,520	23.0%
Households with children under 18	4,682	42.8%
Households with seniors (65+)	3,725	34.0%
Average household size	3.89

Marital status

Status	Male	Female
Never married	45.6%	42.1%
Married	43.3%	42.3%
Separated	2.5%	2.7%
Widowed	2.5%	6.4%
Divorced	6.0%	6.5%

Education

Less than 9th grade 27.6%

Some HS, no diploma 15.9%

HS graduate 26.2%

Some college, no degree 15.4%

Associate's degree 3.7%

Bachelor's degree 8.5%

Graduate / professional 2.7%

Metric	%
HS diploma or higher	56.5%
Bachelor's or higher	11.1%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	489	4.8%
Kindergarten	356	3.5%
Elementary school	4,016	39.5%
High school	2,555	25.1%
College / grad school	2,758	27.1%

Employment

Industry of employment

Manufacturing 17.3%

Education & healthcare 15.8%

Arts, food & hospitality 10.5%

Retail trade 10.3%

Professional & management 10.2%

Transportation & utilities 9.1%

Construction 8.6%

Other services 6.4%

Wholesale trade 5.5%

Finance & real estate 3.0%

Public administration 1.7%

Information 0.9%

Agriculture & mining 0.8%

Occupation

Category	%
Management, business & arts	19.6%
Service	20.9%
Sales & office	21.7%
Natural resources & construction	11.0%
Production & transportation	26.8%

Employment type

Type	%
Private sector	84.2%
Government	8.8%
Self-employed	6.9%
Unpaid family workers	0.1%

Commute

Method	%
Drive alone	73.6%
Carpool	13.2%
Public transit	3.5%
Walk	2.7%
Work from home	4.7%
Other means	2.2%
Avg commute (minutes)	27.8

Poverty

All people 19.3%

Under 18 years 32.5%

18 and over 15.5%

Married-couple families 10.2%

Female-led households 26.0%

Income support

Source	% of households
Social Security	27.8%
Retirement income	11.2%
Supplemental Security	12.0%
Cash public assistance	6.3%
Food stamps / SNAP	21.2%

Health indicators

Condition	%
Obesity	31.3%
High blood pressure	26.2%
High cholesterol	27.7%
Diabetes	12.4%
Heart disease	5.2%
Stroke	2.9%
Asthma	9.0%
Arthritis	15.8%
Kidney disease	3.0%
Pulmonary disease	5.4%
Cancer	3.5%

Behavior / access	%
Smoking	13.8%
Binge drinking	15.9%
No physical activity	31.0%
Less than 7 hrs sleep	35.3%
Depression	16.4%
Fair or poor health	23.3%
Poor mental health	17.0%
Poor physical health	12.5%
No health insurance	28.6%
Visited doctor (checkup)	60.1%
Visited dentist	46.1%
Cholesterol screening	86.4%
Teeth loss	15.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	614	1.8%

Disability	%
Any disability	10.8%
Under 18	4.7%
18–64 years	7.3%
65 and over	38.3%

Health insurance coverage

Type	%
Private insurance	35.6%
Public insurance	56.1%
No insurance	12.8%
Uninsured under 19	4.4%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	40,412	94.1%
Spanish	17,092	42.3%
Other Indo-European	10,342	25.6%
Asian & Pacific Islander	87	0.2%
Other languages	6,663	16.5%

Place of birth & citizenship

Origin	Count	%
Native born (US)	21,694	50.5%
Born in same state	21,426	49.9%
Born in different state	20,657	48.1%
Foreign born	268	0.6%
Naturalized citizen	21,259	49.5%
Not a US citizen	10,189	47.9%

Ancestry

Ancestry	Count	%
Arab	1,270	3%
French	116	0.3%
Italian	99	0.2%

Ancestry	Count	%
Polish	25	0.1%
English	14	0%

Technology access

Metric	% of households
Computer access	25.5%
Internet access	93.5%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 91733

What city is ZIP code 91733 in?

ZIP code 91733 is primarily assigned to South El Monte, California.

What county is ZIP code 91733 in?

ZIP code 91733 falls within Los Angeles County, California.

Is Spanish widely spoken in ZIP code 91733?

Approximately 42% of households in ZIP code 91733 speak Spanish as a primary language.

How educated is the population of ZIP code 91733?

11% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

Is ZIP code 91733 mostly rentals?

57% of occupied units in ZIP code 91733 are renter-occupied.

What is the poverty rate in ZIP code 91733?

19% of residents in ZIP code 91733 live below the poverty line, above the national average.

What timezone is ZIP code 91733 in?

ZIP code 91733 observes the PST timezone.