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ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2022

Zip Code 91001, Altadena, CA

ZIP Code 91001 Details

Zip Code:91001
State:CA [California]
Multi County:No
City Alias(es):Altadena
Area Code:626 / 323
City Type:P [Post Office]
Classification: [Non-Unique]
Time Zone:Pacific (GMT -08:00)
Observes Daylight Saving:Yes
Elevation:1500 ft
State FIPS:06
County FIPS:037
Intro Date:<2004-10

ZIP Code 91001 2010 Census Demographics

Current Population:36,886
2010 Population:36,126
Households per ZIP Code:12,663
Average House Value:$812,400
Avg. Income Per Household:$104,577
Persons Per Household:2.83
White Population:19,245
Black Population:10,895
Hispanic Population:10,469
Asian Population:2,449
American Indian Population:897
Hawaiian Population:113
Other Population:5,074
Male Population:17,421
Female Population:18,705
Median Age:41.60 years
Male Median Age:40.10 years
Female Median Age:43.20 years

ZIP Code 91001 Other Demographics

# Residential Mailboxes:13,034
# Business Mailboxes:474
Total Delivery Receptacles:13,498
Number of Businesses:610
1st Quarter Payroll:$42,913,000
Annual Payroll:$192,325,000
# of Employees:4,202
Water Area:0.016 sq mi
Land Area:8.254 sq mi
113th Congressional District:27
113th Congressional Land Area:699.9 sq mi
Single Family Delivery Units:12,238
Multi Family Delivery Units:765
# Residential Mailboxes:13,034
# Business Mailboxes:474
Total Delivery Receptacles:13,498

ZIP Code 91001 Social Security Benefits

  2018 2019 Delta
Total Beneficiaries: 6,585 6,690 +105
Retired Workers: 5,175 5,310 +135
Disabled Workers: 450 425 -25
Widow(er)s and Parents: 365 365 0
Spouses: 335 325 -10
Children: 260 265 +5
65+: 5,625 5,780 +155
Monthly Benefits - All: $9,736,000 $10,201,000 +$465,000
Monthly Benefits - Retired Workers: $8,108,000 $8,575,000 +$467,000
Monthly Benefits - Widow(ers): $534,000 $550,000 +$16,000

ZIP Code 91001 Statistical Areas

CBSA: 31080
CBSA Name: Los Angeles-Long Beach-Anaheim, CA
CBSA Type: Metro
CBSA Division: 31084
CBSA Division Name: Los Angeles-Long Beach-Glendale, CA
CBSA Population:0
CBSA Division Population:9,818,605
MSA: 4472
MSA Name: Los Angeles-Riverside-Orange County, CA
PMSA: 4480
PMSA Name: Los Angeles-Long Beach, CA PMSA
City State Key:Z20075
Preferred Last Line Key:Z20075
90895: Previous ZIP Code
Next ZIP Code: 91003


  1. U.S. Postal Service [Last Updated: 5/1/2022],
  2. Internal Data Creation [Last Updated: 5/1/2022],
  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: 5/1/2022],
  6. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],
  7. Centers for Medicare & Medicaid Services [Updated Yearly],