91748 ZIP Code — Rowland Heights, CA

Los Angeles County, California

ZIP code 91748 is located in Rowland Heights, California, within Los Angeles County. It covers approximately 14.18 square miles and serves a population of 43,851 residents. This is a po box ZIP code in the Pacific (PT) timezone, served by area code 626.

About ZIP code 91748

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $730,300. Owner-occupancy sits near the national average at 64%.

The gap between median ($83,610) and mean household income suggests income inequality — a small number of higher earners pull the average up. 34% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 32 minutes is near the national average.

Educational attainment is near the national average, with 36% of residents holding a bachelor's degree or higher.

Notable community characteristics include Spanish spoken in 43% of households.

43,851

population

14.18

sq mi land

PO Box

ZIP type

Pacific (PT)

timezone

91748 ZIP code map

Cities in ZIP code 91748

Below are the cities the US Postal Service accepts for ZIP code 91748. Using any city not on this list may result in mail delivery delays.

City	Status
Rowland Heights	Acceptable
Rowland Heights	Acceptable
Rowland Heights	Preferred

Nearby ZIP codes

91792 West Covina (3.1 mi) 91789 Walnut (3.6 mi) 91744 La Puente (3.8 mi) 92821 Brea (3.8 mi) 90631 La Habra (4.1 mi) 91745 Hacienda Heights (4.8 mi) 91765 Diamond Bar (5 mi) 92835 Fullerton (5.3 mi) 90603 Whittier (5.7 mi) 91791 West Covina (5.7 mi) 91790 West Covina (6.6 mi) 90605 Whittier (6.8 mi)

Demographics updated 06/2026

Population
Total population	43,851
Population density	3,092 / sq mi
State FIPS	06
County FIPS	037

Geography
Land area	14.18 sq mi
Water area	0.08 sq mi
Latitude	33.9798
Longitude	-117.9032
Timezone	Pacific (PT)
Area code	626

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	34.2%	36.2%	32.6%
$50k – $100k	31.2%	28.2%	27.7%
$100k – $200k	25.3%	24.5%	26.4%
Over $200k	9.4%	11.0%	13.3%

Demographics & statistics

43,851

Population

3,092

People per sq mi

43.2

Median age

$83,610

Median household income

$35,523

Per capita income

$730,300

Median home value

$1,861

Median monthly rent

64.3%

Home ownership

10.0%

Poverty rate

6.2%

Unemployment

9,387

Housing units

35.7%

Bachelor's or higher

Age distribution

Male Female

1,142

Under 5

1,153

978

5–9

987

1,113

10–14

1,124

1,154

15–19

1,165

1,163

20–24

1,175

3,131

25–34

3,162

2,667

35–44

2,694

2,804

45–54

2,833

1,566

55–59

1,581

1,607

60–64

1,623

2,799

65–74

2,828

1,168

75–84

1,179

525

85+

530

← Male

Female →

Age summary

Group	Count	%
Under 18	7,960	18.2%
18 and over	35,891	81.8%
65 and over	9,029	20.6%
Median age	43.2 years

Race & ethnicity

Asian 48.3%

Hispanic or Latino 19.2%

Other race 15.4%

White 10.1%

Two or more races 5.1%

American Indian / Alaska Native 0.8%

Black or African American 0.8%

Native Hawaiian / Pacific Islander 0.2%

Group	Count	%
Asian	26,211	48.3%
Hispanic or Latino	10,439	19.2%
Other race	8,387	15.4%
White	5,482	10.1%
Two or more races	2,788	5.1%
American Indian / Alaska Native	437	0.8%
Black or African American	432	0.8%
Native Hawaiian / Pacific Islander	114	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	34.2%	36.2%	32.6%
$50k – $100k	31.2%	28.2%	27.7%
$100k – $200k	25.3%	24.5%	26.4%
Over $200k	9.4%	11.0%	13.3%

Under $10k 4.6%

$10k–$15k 3.2%

$15k–$25k 6.4%

$25k–$35k 5.7%

$35k–$50k 9.7%

$50k–$75k 14.7%

$75k–$100k 14.2%

$100k–$150k 18.4%

$150k–$200k 9.6%

$200k+ 13.5%

Range	% of households
Under $10k	4.6%
$10k–$15k	3.2%
$15k–$25k	6.4%
$25k–$35k	5.7%
$35k–$50k	9.7%
$50k–$75k	14.7%
$75k–$100k	14.2%
$100k–$150k	18.4%
$150k–$200k	9.6%
$200k+	13.5%
Median income	$83,610

Housing

Home values

Under $50k 0.2%

$50k–$100k 3.0%

$100k–$150k 2.8%

$150k–$200k 0.7%

$200k–$300k 1.4%

$300k–$500k 4.2%

$500k–$1M 69.1%

$1M+ 18.6%

Housing overview

Metric	Value
Median home value	$730,300
Median rent / month	$1,861
Owner occupied	64.3%
Renter occupied	35.7%
Vacant	4.2%
Single-family detached	70.7%
Large apartment buildings	8.4%
Mobile homes	4.4%
Median rooms	5.4
Avg household size (owned)	3.16

Year built

Era	%
2020 or later	0.2%
2010–2019	0.8%
2000–2009	2.0%
1990–1999	14.7%
1980–1989	19.8%
1970–1979	27.6%
1960–1969	25.4%
1950–1959	7.1%
1940–1949	2.0%
1939 or earlier	0.5%

Bedrooms

Size	% of units
No bedroom (studio)	4.6%
1 bedroom	7.2%
2 bedrooms	15.9%
3 bedrooms	30.2%
4 bedrooms	34.7%
5+ bedrooms	7.5%

Vehicles per household

Vehicles	% of households
No vehicle	3.7%
1 vehicle	22.7%
2 vehicles	36.7%
3 or more	36.9%

Heating fuel

Fuel type	%
Utility gas	77.7%
Electricity	18.2%
Propane / LP gas	1.9%
Fuel oil	0.1%
Solar	0.6%
No fuel used	1.5%

Households & families

Household type	Count	%
Married-couple family	8,041	58.9%
Cohabiting couple	559	4.1%
Male householder, no spouse	1,982	14.5%
Female householder, no spouse	3,072	22.5%
Households with children under 18	4,296	31.5%
Households with seniors (65+)	5,910	43.3%
Average household size	3.19

Marital status

Status	Male	Female
Never married	36.2%	28.7%
Married	55.4%	52.8%
Separated	1.1%	1.3%
Widowed	1.3%	8.0%
Divorced	6.0%	9.2%

Education

Less than 9th grade 8.7%

Some HS, no diploma 6.7%

HS graduate 25.4%

Some college, no degree 15.2%

Associate's degree 8.4%

Bachelor's degree 26.5%

Graduate / professional 9.2%

Metric	%
HS diploma or higher	84.7%
Bachelor's or higher	35.7%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	568	5.8%
Kindergarten	489	5.0%
Elementary school	3,449	35.4%
High school	1,946	20.0%
College / grad school	3,278	33.7%

Employment

Industry of employment

Education & healthcare 18.0%

Arts, food & hospitality 13.9%

Manufacturing 11.5%

Professional & management 10.2%

Retail trade 10.0%

Finance & real estate 7.4%

Wholesale trade 7.0%

Transportation & utilities 6.7%

Construction 5.3%

Other services 4.9%

Public administration 3.5%

Information 1.5%

Agriculture & mining 0.2%

Occupation

Category	%
Management, business & arts	36.0%
Service	20.1%
Sales & office	24.7%
Natural resources & construction	5.2%
Production & transportation	14.0%

Employment type

Type	%
Private sector	81.2%
Government	10.3%
Self-employed	8.4%
Unpaid family workers	0.1%

Commute

Method	%
Drive alone	73.8%
Carpool	12.2%
Public transit	1.9%
Walk	0.9%
Work from home	10.7%
Other means	0.6%
Avg commute (minutes)	32.4

Poverty

All people 10.0%

Under 18 years 11.8%

18 and over 9.5%

Married-couple families 7.7%

Female-led households 11.2%

Income support

Source	% of households
Social Security	33.9%
Retirement income	16.8%
Supplemental Security	7.6%
Cash public assistance	3.4%
Food stamps / SNAP	6.3%

Health indicators

Condition	%
Obesity	20.0%
High blood pressure	26.1%
High cholesterol	30.1%
Diabetes	10.5%
Heart disease	4.5%
Stroke	2.4%
Asthma	6.9%
Arthritis	15.1%
Kidney disease	2.3%
Pulmonary disease	3.9%
Cancer	4.2%

Behavior / access	%
Smoking	8.8%
Binge drinking	12.6%
No physical activity	21.3%
Less than 7 hrs sleep	32.9%
Depression	11.7%
Fair or poor health	12.7%
Poor mental health	11.8%
Poor physical health	7.8%
No health insurance	12.6%
Visited doctor (checkup)	64.4%
Visited dentist	61.5%
Cholesterol screening	91.3%
Teeth loss	7.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	841	2.3%

Disability	%
Any disability	8.2%
Under 18	1.3%
18–64 years	4.4%
65 and over	25.7%

Health insurance coverage

Type	%
Private insurance	59.0%
Public insurance	40.7%
No insurance	7.3%
Uninsured under 19	3.1%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	41,556	94.8%
Spanish	18,001	43.3%
Other Indo-European	4,107	9.9%
Asian & Pacific Islander	130	0.3%
Other languages	13,719	33.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	19,572	44.6%
Born in same state	19,265	43.9%
Born in different state	17,335	39.5%
Foreign born	307	0.7%
Naturalized citizen	24,279	55.4%
Not a US citizen	15,167	62.5%

Ancestry

Ancestry	Count	%
Arab	847	1.9%
French	458	1%
Italian	402	0.9%
Polish	124	0.3%

Ancestry	Count	%
English	56	0.1%
Irish	27	0.1%
German	20	0%
Dutch	12	0%

Technology access

Metric	% of households
Computer access	31.1%
Internet access	97.2%

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

Frequently asked questions about ZIP code 91748

What city is ZIP code 91748 in?

ZIP code 91748 is primarily assigned to Rowland Heights, California.

What county is ZIP code 91748 in?

ZIP code 91748 falls within Los Angeles County, California.

Is Spanish widely spoken in ZIP code 91748?

Approximately 43% of households in ZIP code 91748 speak Spanish as a primary language.

What is the typical home value in ZIP code 91748?

The median home value in ZIP code 91748 is $730,300.

What is the population of ZIP code 91748?

ZIP code 91748 has an estimated population of 43,851 residents, with a density of 3,093 people per square mile.

What is the median household income in ZIP code 91748?

The median household income in ZIP code 91748 is $83,610, above the national median of ~$75,000.

What timezone is ZIP code 91748 in?

ZIP code 91748 observes the PST timezone.