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94403 ZIP Code

ZIP Code: 94403 San Mateo

Extra Details of ZIP Code 94403

ZIP Code 94403
Zip Code Type Standard
State California - CA
Official Zip Code Name San Mateo
Primary County San Mateo
Area Code (s) 650
Racial Majority White 52.08%
Elevation Range 62 - 197 ft.

Data: State Statistics Office | Updated on: Jun 18, 2026

How to write a U.S. envelope?

The first step is to write the recipient address:
First, you need to fill in the recipient's mailing information in the center of the envelope. The first line is also the recipient's name. When writing the recipient's name, pay attention to the title, and write the person's title and name in the middle of the envelope. On the second line, write the recipient's full address, including any associated apartment or suite numbers. The more detailed the better. The third line writes the recipient's city, state, and zip code, this information is the last line of the address.

The second step is to write the reply address:
The return address is three lines, the first line will be the sender's name. The second line writes the sender's detailed address, including the street address, please remember to write the house number. On the third line write your city, state abbr, and zip code.

Finally, don't forget to stick the stamp on the right top corner. Otherwise, the letter will not go into the delivery process.

How to Read Zip Code

Population and Employment

population

44,361

Unemployment Rate
3.1%
Poverty Rate
6.3%
Non-Citizens
16.4%

Location of Zip Code 94403

On this map you can see exactly where postcodes are located within Germany.

Gender & Age Statistics

Gender

  • Male
    50%
  • Female
    50%

Age

  • <10 years
    11%
  • 10-17 years
    9%
  • 18-34 years
    24%
  • 35-64 years
    41%
  • 65+ years
    15%

94403 Demographics

Racial Diversity

  • White
    42%
  • African American
    2%
  • Hispanic
    21%
  • American Indian or Alaska native
    0%
  • Asian & Other race
    28%

Education Levels

  • Master's degree or above
    26%
  • Bachelor's degree
    34%
  • Some college or associate degree
    22%
  • High school diploma or vocational degree
    13%
  • Less than high school diploma
    6%

94403 Income

Median Household Income

$139,631

National $64,994

Household Income Brackets

  • <$30k
    9%
  • $30-$44k
    7%
  • $45-$84k
    10%
  • $85-$149k
    28%
  • $150k+
    47%

Median Individual Income

$63,453

National $32,197

Individual Income Brackets

  • <$20k
    16%
  • $20-$34k
    17%
  • $35-$74k
    50%
  • $75k+
    17%

Online Business Directory

Whether you're looking for hotels, hairdressers, doctors or lawyers in San Mateo, CA. You can find these phone numbers in our phone book. With us, you can easily book a restaurant or hotel in your location. You can also find reputable real estate agents and insurance agents. Everything you need is easily accessible here!

SunPower By SunSolar
8803 Scobee St., Bakersfield,, 93311

Need For Build Inc
12925 Pomerado Rd, Ste H, Poway, 92064

KRISH COMPUSOFT SERVICES INC
1525 McCarthy Blvd, Ste# 212,, Milpitas, 95035

Paypal Login
131 S MAPLE DR APTB BEVERLY HILLS CA 90212 USA, Beverly Hills, 90212

Gatsby Investment
269 S Beverly Dr. Suite 408, Beverly Hills, 90212

Leading Tax Group
9440 Santa Monica Blvd Suite 301, Beverly Hills, 90210

Flowerkist
9440 S Santa Monica Blvd Beverly Hills, CA 90210, Beverly Hills, 90210

9MM Energy
9350 Wilshire Blvd, Suite 203,, Beverly Hills, 90212

Schools Serving San Mateo

Meadow Heights Elementary
2619 Dolores St. San Mateo, CA 94403

George Hall Elementary
130 San Miguel Way San Mateo, CA 94403

Beresford Elementary
300 28th Ave. San Mateo, CA 94403

Fiesta Gardens International Elementary
1001 Bermuda Dr. San Mateo, CA 94403

Hillsdale High
3115 Del Monte St. San Mateo, CA 94403

Abbott Middle
600 36th Ave. San Mateo, CA 94403

Library San Mateo

Hillsdale Branch Library
205 W. Hillsdale Blvd. San Mateo, CA 94403

San Mateo County Libraries
125 Lessingia Court San Mateo, CA 94402

San Mateo Public Library
55 West Third Ave San Mateo, CA 94402

San Mateo County Bookmobile
125 Lessingia Court San Mateo, CA 94402

Marina Branch Library
1890 Chestnut St. San Mateo, CA 94403

Museum San Mateo

Castle Art Museum Art Research Laboratory
411 Villa Ter San Mateo, CA 94401

Center For American Musical
1366 Rainbow Dr San Mateo, CA 94402

San Mateo Arboretum Society
101 9th Ave San Mateo, CA 94401-4202

Museum Of Reconstructions
71 9th Ave Apt 6 San Mateo, CA 94401

Curiodyssey
1651 Coyote Point Dr San Mateo, CA 94401-1002

San Mateo Children Museum
138 South B Street San Mateo, CA 94401

Hospital San Mateo

San Mateo Medical Center
222 W 39th Ave San Mateo, CA 94403

University San Mateo

Gurnick Academy Of Medical Arts
2121 S El Camino Real Bldg C 200 San Mateo, CA 94403

San Mateo County Community College District Office
3401 Csm Drive San Mateo, CA 94402

College Of San Mateo
1700 W Hillsdale Blvd San Mateo, CA 94402-3784