Castle Hill, California
No ZIP code carries the name of Castle Hill, California, in Contra Costa County; the nearest ZIP codes are 94595, 94596 and 94597, in area code 925.
- Nearest ZIP
- 94595, 94596, 94597
- Area code
- 925
- County
- Contra Costa County
- State
- California
- Time zone
- Pacific Time
- Coordinates
- 37.8747, -122.0586
Nearest ZIP codes to Castle Hill
These are the ZIP codes nearest to Castle Hill, each listed with the post office it is named after.
| ZIP code | Post office | County | Area codes |
|---|---|---|---|
| 94595 | Walnut Creek | Contra Costa County | 925 |
| 94596 | Walnut Creek | Contra Costa County | 925 |
| 94597 | Walnut Creek | Contra Costa County | 925 |
Area code for Castle Hill
- Area code 925
In service since March 14, 1998. Local calls are dialed with 1 plus ten digits.
Time zone
Castle Hill is in the Pacific Time zone.
Towns near Castle Hill
- Saranap2.1 km (1.3 mi)
- Walnut Creek3.3 km (2.1 mi)
- Acalanes Ridge3.8 km (2.4 mi)
- Alamo3.9 km (2.4 mi)
- Shell Ridge4.1 km (2.5 mi)
- Lafayette5.2 km (3.2 mi)
- Contra Costa Centre5.7 km (3.5 mi)
- North Gate6.3 km (3.9 mi)
Local numbers in area code 925
Looking for a phone number with a Castle Hill area code? These 925 numbers are for sale through Exclusive Digits. Portable to Verizon, AT&T, T-Mobile and all major US carriers.
- (925) 888-8012Moraga, CA$79View & buy
- (925) 888-8432Moraga, CA$79View & buy
- (925) 888-8987Moraga, CA$79View & buy
- (925) 380-8884San Ramon, CA$89View & buy
- (925) 400-8882Pleasanton, CA$89View & buy
- (925) 480-9898San Ramon, CA$89View & buy
- (925) 567-0707Clayton, CA$89View & buy
- (925) 567-7776Clayton, CA$89View & buy
- (925) 638-1818Martinez, CA$89View & buy
- (925) 660-8883Pleasanton, CA$89View & buy
- (925) 660-8886Pleasanton, CA$89View & buy
- (925) 789-4848Sunol, CA$89View & buy
We may earn a commission when you buy through our links. Numbers are sold and delivered by Exclusive Digits.