Castro Valley ZIP Code Finder by Area and Number California
The Castro Valley zip code is 94546 in California helps people find the correct mailing location for homes, businesses, and services in Castro Valley.
Welcome to our complete guide for Castro Valley, California ZIP Codes. Whether you're moving to Castro Valley, sending mail, searching for an address, or looking for local postal information, this page provides everything you need to know about the ZIP Codes serving Castro Valley, California.
Every Castro Valley ZIP Code is assigned by the United States Postal Service (USPS) to support efficient mail delivery and address identification. In addition to postal services, Castro Valley ZIP Codes are widely used for online shopping, navigation, banking, insurance, healthcare, business operations, and government services.
| City | Castro Valley |
| Zip Code | 94546 |
| State | California |
| County | Alameda |
| Population | 45,848 |
| Latitude | 37.73441 |
| Longitude | -122.09056 |
| Time Zone | America/Los_Angeles |
The Castro Valley California zip code is used by USPS for mail delivery, shipping, and address identification across Castro Valley and nearby California cities.
Castro Valley California is a growing city in California, and many people search for the Castro Valley zip code, Castro Valley postal code, Castro Valley CA zip code, and Castro Valley California mailing code when sending mail or locating addresses. The zip code in Castro Valley is important for deliveries, online orders, location searches, and business listings in Castro Valley.
If you are searching for the Castro Valley zip code list, Castro Valley CA postal code, Castro Valley California city zip code, or Castro Valley mailing zip code, this page helps you quickly find the correct Castro Valley zip code. Many residents, travelers, and businesses use the Castro Valley zip code lookup to confirm the correct Castro Valley mailing address.
The Castro Valley zip code area covers neighborhoods, residential communities, and business locations in Castro Valley CA. Whether you are looking for the Castro Valley city zip code, Castro Valley California postal code, Castro Valley CA mailing code, or Castro Valley location zip code, the Castro Valley zip code California helps identify the correct postal region in California.
People also search for zip codes near Castro Valley, Castro Valley postal codes, Castro Valley CA zip code lookup, Castro Valley address zip code, and Castro Valley California USPS zip code to find nearby locations in California.
ZIP Codes in Castro Valley
The following ZIP Codes serve Castro Valley, California.
| ZIP Code | County | Population | Time Zone |
|---|---|---|---|
| 94546 | Alameda | 45,848 | America/Los_Angeles |
| 94552 | Alameda | 14,359 | America/Los_Angeles |
Whether you're searching for a residential, commercial, or mailing address, the ZIP Code list above makes it easy to find the correct postal code for Castro Valley.
About Castro Valley, California
Castro Valley is located in Alameda County, California, and is served by one or more ZIP Codes assigned by USPS. Residents, businesses, and visitors rely on these ZIP Codes for mail delivery, package shipping, address verification, and location-based services.
Some cities have a single ZIP Code, while larger cities may have multiple ZIP Codes covering different neighborhoods or business districts.
If you're searching for a Castro Valley ZIP Code, this page provides the latest available information to help you find the correct postal code quickly.
Castro Valley ZIP Code Map
The Castro Valley ZIP Code map helps visitors understand the geographic coverage of ZIP Code areas throughout the city.
The map can help you:
- Locate neighborhoods
- Find nearby ZIP Codes
- Explore surrounding communities
- Plan travel routes
- Understand delivery areas
Find a ZIP Code in Castro Valley
If you need to locate a ZIP Code within Castro Valley, you can search using:
- Street address
- Neighborhood
- Business name
- Landmark
- USPS mailing address
Using the correct Castro Valley ZIP Code helps improve mail delivery, shipping accuracy, and address verification.
About Living in Castro Valley
Castro Valley, California is part of Alameda County and is home to approximately 45,848 residents. The city operates in the America/Los_Angeles time zone and is identified by the geographic coordinates 37.73441 latitude and -122.09056 longitude.
Residents enjoy access to local schools, businesses, public services, healthcare facilities, parks, and transportation networks. Whether you're relocating, visiting, or starting a business, knowing the correct ZIP Code helps simplify everyday tasks.
Common Uses of Castro Valley ZIP Codes
ZIP Codes in Castro Valley are commonly used for:
- USPS mail delivery
- Package shipping
- Online shopping
- Address verification
- Banking
- Insurance
- Government services
- Emergency services
- Navigation
- Real estate
- Business operations
- Delivery planning
Why Castro Valley ZIP Codes Matter
Using the correct Castro Valley ZIP Code offers several benefits.
For Residents
- Faster mail delivery
- Accurate online orders
- Easier address verification
- Better navigation
For Businesses
- Shipping optimization
- Customer management
- Delivery planning
- Local marketing
Frequently Asked Questions
Conclusion
Whether you're looking for a mailing address, planning a move, or researching local information, this Castro Valley, California ZIP Code guide makes it easy to find the postal information you need. Explore the ZIP Code list, use the map, and browse additional location details to learn more about Castro Valley and its surrounding communities.