91788 Walnut
Statistics for ZIP Code 91788 in Walnut
- Population: 30,237 people
- Elevation: 171 m
- Time zone: America/Los_Angeles
- Nearest ZIP Code: 91789 Walnut (0.95 km)
- ZIP Codes within 5 km: 2
- Geographical Coordinates: Latitude 34.0203, Longitude -117.865
Walnut is served by 6 zip codes in total. The 917xx range covers 71 zip codes across 31 localities. It sits in the south-east of California.