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ZIP Code Database - Facts & Stats

Data Last Updated: June 1, 2023

Zip Code 94401, San Mateo, CA

ZIP Code 94401 Details

Zip Code:94401
City:San Mateo
State:CA [California]
Counties:SAN MATEO, CA
Multi County:No
City Alias(es):San Mateo
Area Code:650
City Type:P [Post Office]
Classification: [Non-Unique]
Time Zone:Pacific (GMT -08:00)
Observes Daylight Saving:Yes
Elevation:9 ft
State FIPS:06
County FIPS:081
Intro Date:<2004-10

ZIP Code 94401 2020 Census Demographics

Current Population:35,863
2020 Population:35,249
Households per ZIP Code:12,874
Average House Value:$944,300
Avg. Income Per Household:$104,260
Persons Per Household:2.69
White Population:11,554
Black Population:850
Hispanic Population:13,370
Asian Population:7,873
American Indian Population:474
Hawaiian Population:1,071
Other Population:8,937
Male Population:17,682
Female Population:17,567
Median Age:37.00 years
Male Median Age:35.70 years
Female Median Age:38.50 years

ZIP Code 94401 Other Demographics

# Residential Mailboxes:13,332
# Business Mailboxes:1,303
Total Delivery Receptacles:15,270
Number of Businesses:1137
1st Quarter Payroll:$249,330,000
Annual Payroll:$1,156,161,000
# of Employees:12,292
Water Area:0.001 sq mi
Land Area:3.111 sq mi
118th Congressional District:15
118th Congressional Land Area:599.45 sq mi
Single Family Delivery Units:5,511
Multi Family Delivery Units:7,441
# Residential Mailboxes:13,332
# Business Mailboxes:1,303
Total Delivery Receptacles:15,270

ZIP Code 94401 Social Security Benefits

  2018 2019 Delta
Total Beneficiaries: 4,710 4,695 -15
Retired Workers: 3,590 3,635 +45
Disabled Workers: 395 355 -40
Widow(er)s and Parents: 320 305 -15
Spouses: 215 220 +5
Children: 190 180 -10
65+: 3,980 4,020 +40
Monthly Benefits - All: $6,874,000 $7,044,000 +$170,000
Monthly Benefits - Retired Workers: $5,525,000 $5,754,000 +$229,000
Monthly Benefits - Widow(ers): $497,000 $483,000 ($14,000)

ZIP Code 94401 Statistical Areas

CBSA: 41860
CBSA Name: San Francisco-Oakland-Berkeley, CA
CBSA Type: Metro
CBSA Division: 41884
CBSA Division Name: San Francisco-San Mateo-Redwood City, CA
CBSA Population:0
CBSA Division Population:0
MSA: 7362
MSA Name: San Francisco-Oakland-San Jose, CA CMSA
PMSA: 7360
PMSA Name: San Francisco, CA PMSA
City State Key:Z22834
Preferred Last Line Key:Z22834
94309: Previous ZIP Code
Next ZIP Code: 94402


  1. U.S. Postal Service [Last Updated: 6/1/2023],
  2. Internal Data Creation [Last Updated: 6/1/2023],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census American National Standards Institute (ANSI) [Last Updated: 6/1/2023],
  6. U.S. Census 2020 [Decennial] [Last Updated: 5/25/2023],
  7. Centers for Medicare & Medicaid Services [Updated Yearly],