About ZIP Code 91001
ZIP code 91001 is assigned to Altadena, Los Angeles County, California, United States. It falls in the Pacific Time (PT) zone. The estimated population of this ZIP code area is 35,475 with a density of 1,658.2 people per square mile.
Location Details
ZIP Code91001
CityAltadena
CountyLos Angeles County
StateCalifornia
CountryUnited States
TimezonePacific Time (PT)
Timezone IDAmerica/Los_Angeles
Latitude34.1952
Longitude-118.1387
ZIP TypeStandard ZIP
Post Office
Address600 LINCOLN AVE
CityPASADENA
StateCA
Nearby ZIP Codes in California
Frequently Asked Questions
What city is ZIP code 91001 in?
ZIP code 91001 is in Altadena, Los Angeles County, California, United States.
What county is ZIP code 91001 in?
ZIP code 91001 is in Los Angeles County, California.
What timezone is ZIP code 91001 in?
ZIP code 91001 is in the Pacific Time (PT) zone (America/Los_Angeles).
What is the population of ZIP code 91001?
The estimated population of ZIP code 91001 is 35,475 people with a density of 1,658.2 people per square mile.
What state is ZIP code 91001 in?
ZIP code 91001 is in California (CA), United States.
📋
Data Source: United States Postal Service (USPS) & US Census Bureau (ZCTA data) · Public domain government data. For official ZIP code information visit tools.usps.com. Data is periodically updated but may not reflect the most recent changes.