94403 Zip Code San Mateo San Mateo

Today Aug 16, 2026, ZIP Code 94403 is located in San Mateo, California, in County San Mateo. It serves as an essential reference for accurate mail delivery, this ZIP Code assists identify the accurate postal area for residential and business addresses.

94403 Zip Code – San Mateo, San Mateo, CA

The 94403 zip code serves San Mateo. It is a neighborhood in San Mateo, 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 94403 you can explore different neighborhoods, it also shows what makes each area unique.

Demographics of Zip Code 94403

Located in San Mateo, California, zip code 94403 has a specific population and density that reflect the local community.

Finding the Right Zip Code for San Mateo, San Mateo County

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

FAQs

How many digits is the San Mateo zip code?

The San Mateo zip code in San Mateo is a five-digit number used to identify this specific area.

Does the San Mateo zip code ever change?

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

Which county is zip code 94403 in?

Zip code 94403 covers areas within San Mateo county, California.