Walnut, California ZIP codes
What is the ZIP code for Walnut, CA?
91788, 91789
1 for street addresses · 1 PO Box only
Walnut is in Los Angeles County, California. USPS uses 2 ZIP codes for Walnut, 1 of them for street addresses. About 40,298 people live in Walnut ZIP codes; the most populated is 91789 with 40,298 residents. The city is in the Pacific Time zone and uses area codes 909, 626 and 840.
| City | Walnut, CA |
|---|---|
| State | California |
| County | Los Angeles County |
| ZIP codes | 2 (plus 1 retired) |
| Population (ZIP areas) | about 40,298 |
| Time zone | Pacific Time · now |
| Area codes | 909, 626, 840 |
All Walnut ZIP codes
| ZIP code | Type | Population | Median income |
|---|---|---|---|
| 91788 | PO Box only | – | – |
| 91789 | Standard | 40,298 | $125,720 |
Population and income: U.S. Census Bureau, American Community Survey 5-year estimates. PO Box and single-organization ZIP codes have no residents.
Cities near Walnut
- Diamond Bar, CA 2.7 mi
- Rowland Heights, CA 3.5 mi
- West Covina, CA 4 mi
- Covina, CA 5.4 mi
- San Dimas, CA 6.2 mi
- La Puente, CA 6.3 mi
- Pomona, CA 6.4 mi
- Brea, CA 6.4 mi
- Hacienda Heights, CA 6.5 mi
- Chino Hills, CA 7.6 mi
Retired Walnut ZIP codes
No longer in use: 91795.
Questions
- What is the ZIP code for Walnut, CA?
- Walnut has 2 ZIP codes: 91788 and 91789. The right one depends on the street address.
- How many ZIP codes does Walnut have?
- 2: 1 standard ZIP codes for street addresses, 1 for PO Boxes only.
- What county is Walnut, CA in?
- Walnut ZIP codes are in Los Angeles County.
- What area code is Walnut, CA?
- Walnut uses area codes 909, 626 and 840.