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94552 ZIP Code

ZIP Code: 94552 Castro Valley

Extra Details of ZIP Code 94552

ZIP Code 94552
Zip Code Type Standard
State California - CA
Official Zip Code Name Castro Valley
Primary County Alameda
Area Code (s) 510
Racial Majority White 40.1%
Elevation Range 492 - 1345 ft.

Data: State Statistics Office | Updated on: Jun 24, 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

15,220

Unemployment Rate
3%
Poverty Rate
2.6%
Non-Citizens
5.2%

Location of Zip Code 94552

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

Gender & Age Statistics

Gender

  • Male
    49%
  • Female
    51%

Age

  • <10 years
    9%
  • 10-17 years
    12%
  • 18-34 years
    13%
  • 35-64 years
    47%
  • 65+ years
    18%

94552 Demographics

Racial Diversity

  • White
    33%
  • African American
    7%
  • Hispanic
    11%
  • American Indian or Alaska native
    0%
  • Asian & Other race
    42%

Education Levels

  • Master's degree or above
    25%
  • Bachelor's degree
    36%
  • Some college or associate degree
    25%
  • High school diploma or vocational degree
    9%
  • Less than high school diploma
    5%

94552 Income

Median Household Income

$180,681

National $64,994

Household Income Brackets

  • <$30k
    6%
  • $30-$44k
    3%
  • $45-$84k
    6%
  • $85-$149k
    24%
  • $150k+
    61%

Median Individual Income

$67,986

National $32,197

Individual Income Brackets

  • <$20k
    17%
  • $20-$34k
    11%
  • $35-$74k
    52%
  • $75k+
    19%

Online Business Directory

Whether you're looking for hotels, hairdressers, doctors or lawyers in Castro Valley, 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!

Modern Painting San Diego
225 Via Osuna, Rancho Santa Fe, CA 92091, Rancho Santa Fe, 92091

Healing Collective Therapy Group
5930 N. Figueroa Street, Los Angeles, 90042

Evon Technologies – Web, App Software Development
410 E Santa Clara Street, San Jose, 95113

FITNESS 19 Dublin
7201 Regional Street, Dublin, 94568

Mabrie Facial Institue
166 Geary Street Floor 1300, San Francisco, 94108

Electrical Service Company Las Vegas
4150 Channel 10 Dr Las Vegas, NV 89119 United States, Las Vegas, 89119

Evisort
1411 Industrial Road, San Carlos, 94070

Bob Lucas’ Santa Clarita Custom Air
23870 Pine St., Building 1, Newhall, 91321

Schools Serving Castro Valley

Library Castro Valley

Castro Valley Library
3600 Norbridge Ave. Castro Valley, CA 94546

Museum Castro Valley

Castro Valley Historical Society
21096 Redwood Rd Castro Valley, CA 94546

Hospital Castro Valley

Eden Medical Center
20103 Lake Chabot Road Castro Valley, CA 94546

University Castro Valley