ZIP Code 91788 — Walnut, California
ZIP code 91788 belongs to Walnut, California (county: Los Angeles). It sits at latitude 34.0203, longitude -117.8653 in the America/Los_Angeles time zone.
| Field | Value |
|---|---|
| ZIP code | 91788 |
| City / place | Walnut |
| State | California |
| County | Los Angeles |
| Coordinates | 34.0203, -117.8653 |
| Time zone | America/Los_Angeles |
| City population | 30,237 |
| ZIP type | PO box / unique |
| Telephone area codes | 626 |
What is ZIP code 91788?
91788 is a five-digit ZIP code used by the United States Postal Service for Walnut, California. It is one of 2 ZIP codes associated with Walnut in this dataset. The delivery area is served from the local post office network, so the ZIP can cover more than one neighbourhood or even cross a city line.
ZIP codes in the same city
Area codes and city profile
Telephone area codes serving Walnut: 626. For population, county and county-seat details, see Walnut and all places in California.
Nearby ZIP codes
91789 1.0 km · Walnut91792 3.0 km · West Covina91748 5.2 km · Rowland Heights91765 5.3 km · Diamond Bar91791 5.8 km · West Covina91744 6.7 km · La Puente91723 7.5 km · Covina91747 7.8 km · La Puente
Frequently asked questions
What city is ZIP code 91788 in?
ZIP code 91788 is in Walnut, California.
What county is 91788 in?
91788 belongs to Los Angeles in California.
What time zone is ZIP code 91788 in?
91788 is in the America/Los_Angeles time zone.