Residential delivery area · California
ZIP Code 91748: Rowland Heights, CA
ZIP code 91748 is in Rowland Heights, California, entirely in Los Angeles County (Census 2020 ZIP-county file). About 42,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $83,428 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Rowland Heights (79%) and Industry (21%).
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Rowland Heights · its only residential ZIP
- County
- Los Angeles County
- Census places
- Rowland Heights (79%) census-designated place; Industry (21%)
- Metro area
- Los Angeles-Long Beach-Anaheim, CA
- House districts
- CA-38 (79%), CA-31 (21%) 119th Congress, by share of land
- State
- California
- Time zone
- Pacific
- Land area
- 14.2 sq mi · 2,995 people per sq mi
Where is ZIP code 91748?
91748 centers on 33.978°, -117.902° and covers 14.2 square miles of land plus 0.1 of water. It borders 7 ZIP codes: 91792, 90631, 91789, 91744, 91745, 92821, 91765.
The map draws ZIP code areas only. For the streets inside 91748, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 91748 compare with the rest of Los Angeles County?
| Measure | 91748 | In Los Angeles County | In CA |
|---|---|---|---|
| People (ACS 2020-2024) | 42,463 | 84th of 301 | 340th of 1,802 |
| Median household income | $83k | 170th of 265 | 791st of 1,189 |
| Median home value | $831k | 145th of 273 | 520th of 1,317 |
Its median household income is higher than in 66% of U.S. residential ZIP codes, and it is denser than 89% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 91748?
The 2020 Census counted 44,737 people in 91748; the ACS, which samples households over 2020-2024, estimates 42,463. Between the 2010 and 2020 censuses its population fell 1.5% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 42,463
- 2020 Census count
- 44,737−1.5% since 2010 (45,406)
- Households
- 13,965
- Median age
- 46.4
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 91748?
Of the 42,463 people the ACS estimates in 91748, 16.8% are under 18 and 22.9% are 65 or older. The largest group by race and Hispanic origin is Asian (not Hispanic) (60.5%), then Hispanic or Latino (30.1%).
- Under 1816.8%
- 18 to 6460.2%
- 65 and older22.9%
- Asian, not Hispanic60.5%
- Hispanic or Latino30.1%
- White, not Hispanic6.0%
- Other or two or more2.0%
- Black, not Hispanic1.4%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 91748 earn?
Median household income is $83,428 (ACS 2020-2024), the 170th highest of the 265 ranked ZIP codes in Los Angeles County. It fell from $91,335 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $83,428
- Income per person
- $39,397
- Below the poverty line
- 12.9%
- Unemployed (of the labor force)
- 5.8%
- Adults 25+ with a bachelor's degree
- 34.9%
- Adjusted gross income per tax return, 2022
- $77,63722,210 returns; wages 62% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 91748?
FHFA's house price index for 91748, built from repeat sales and appraisals of the same homes, rose 65% from 2015 to 2025 and rose 40% from 2020 to 2025, and moved −1.8% in 2025.
- Median home value (owners' estimate)
- $830,800
- Median gross rent
- $1,962
- Homes owned by their occupants
- 66.6%
- Housing units
- 14,504
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 91748?
2,827 business establishments had a location in this ZIP code in 2023, 230 more than in 2018; the most are in transportation and warehousing (ZIP Code Business Patterns).
- Transportation and warehousing498
- Wholesale trade487
- Accommodation and food services315
- Professional, scientific, and technical services288
- Retail trade274
- Real estate and rental and leasing180
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 91748?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 91792 | West Covina | 30,629 | $95k | 3.1 mi |
| 90631 | La Habra | 68,309 | $104k | 3.8 mi |
| 91789 | Walnut | 40,298 | $126k | 3.9 mi |
| 91744 | La Puente | 76,942 | $94k | 4.2 mi |
| 91745 | Hacienda Heights | 54,351 | $109k | 4.2 mi |
| 92821 | Brea | 41,623 | $124k | 4.2 mi |
| 91765 | Diamond Bar | 44,502 | $106k | 5.2 mi |
| 92835 | Fullerton | 26,005 | $144k | 5.4 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.