ZIP code · Rowland Heights · California · United States
ZIP code 91748 — Rowland Heights
ZIP code 91748 serves Rowland Heights, California.
- Postal code
- 91748Single source Value from one source, not cross-checked.
- City
- Rowland Heights
- County
- Los Angeles FIPS 06037
- State
- California
- Country
- United States
- Coordinates
- 33.9818, -117.8969 — precision precise (locality)
View on OpenStreetMap - Population
- 43,137 (ZCTA, ACS 5-year)
- Population density
- 3,043 / sq mi
- Land area
- 14.2 sq mi (36.7 km²) (ZCTA, ACS 5-year)
- Median household income
- $83,455
- Per-capita income
- $38,662
- Median age
- 44.7
- Households
- 13,793
- Housing units
- 14,396
- Median home value
- $781,500
- Median gross rent
- $1,922 / month
- Congressional districts
- CA-38 (also CA-31) (119th Congress)
- USDA hardiness zone
- 10a (30 to 35 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/Los_Angeles (UTC−8 / UTC−7 DST)
Tools: compare 91748 with another ZIP · ZIPs within 25 miles · distance from 91748
Map of ZIP code 91748
Climate — monthly normals
Warmest month Aug (avg high 89°F), coldest Dec (avg low 48°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 71 | 71 | 74 | 77 | 78 | 82 | 87 | 89 | 88 | 83 | 77 | 71 |
| Avg low °F | 49 | 49 | 51 | 54 | 58 | 62 | 66 | 66 | 64 | 59 | 53 | 48 |
| Precip in | 3.2 | 3.0 | 1.8 | 0.7 | 0.4 | 0.1 | 0.1 | 0.0 | 0.1 | 0.6 | 1.0 | 2.4 |
NOAA 1991–2020 climate normals from the nearest station: ANAHEIM (8.7 mi) · NOAA NCEI
Places in ZIP 91748
- 11 schools
- 6 supermarkets
- 89 restaurants & cafés
- 7 parks
- 10 playgrounds
- 3 gyms & sports centres
- 1 libraries
- 5 places of worship
- 8 banks
- 7 gas stations
- 4 EV charging stations
- 2 police & fire stations
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page