94128 Zip Code San Francisco San Mateo

Today Aug 23, 2026, ZIP Code 94128 is located in San Francisco, 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.

94128 Zip Code – San Mateo, San Francisco, CA

The 94128 zip code serves San Mateo. It is a neighborhood in San Francisco, 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 94128 you can explore different neighborhoods, it also shows what makes each area unique.

Demographics of Zip Code 94128

Located in San Francisco, California, zip code 94128 has a specific population and density that reflect the local community.

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

If you need to send mail to San Francisco 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 Francisco 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 94128 in?

Zip code 94128 covers areas within San Mateo county, California.