94546 Zip Code Castro Valley Alameda

Today Aug 06, 2026, ZIP Code 94546 is located in Castro Valley, California, in County Alameda. It serves as an essential reference for accurate mail delivery, this ZIP Code assists identify the accurate postal area for residential and business addresses.

94546 Zip Code – Alameda, Castro Valley, CA

The 94546 zip code serves Alameda. It is a neighborhood in Castro Valley, California. This code is important for accurate mail delivery. It can also help you find local amenities such as schools, parks and community events. By using zip codes like 94546 you can explore different neighborhoods, it also shows what makes each area unique.

Demographics of Zip Code 94546

Located in Castro Valley, California, zip code 94546 has a specific population and density that reflect the local community.

Finding the Right Zip Code for Castro Valley, Alameda County

If you need to send mail to Castro Valley Alameda county, you can easily find the zip code online or by visiting your local post office.

FAQs

How many digits is the Alameda zip code?

The Alameda zip code in Castro Valley is a five-digit number used to identify this specific area.

Does the Alameda zip code ever change?

Zip codes may change due to postal service updates or administrative reasons. If you are looking for the Alameda zip code always check for the most current information from official postal sources or local post offices.

Which county is zip code 94546 in?

Zip code 94546 covers areas within Alameda county, California.