ZIP Code 91001 — Altadena, California
ZIP code 91001 belongs to Altadena, California (county: Los Angeles). It sits at latitude 34.1912, longitude -118.1392 in the America/Los_Angeles time zone.
| Field | Value |
|---|---|
| ZIP code | 91001 |
| City / place | Altadena |
| State | California |
| County | Los Angeles |
| Coordinates | 34.1912, -118.1392 |
| Time zone | America/Los_Angeles |
| City population | 42,777 |
| ZIP type | PO box / unique |
| Telephone area codes | 626 |
What is ZIP code 91001?
91001 is a five-digit ZIP code used by the United States Postal Service for Altadena, California. It is one of 2 ZIP codes associated with Altadena in this dataset. The delivery area is served from the local post office network, so the ZIP can cover more than one neighbourhood or even cross a city line.
ZIP codes in the same city
Area codes and city profile
Telephone area codes serving Altadena: 626. For population, county and county-seat details, see Altadena and all places in California.
Nearby ZIP codes
91003 0.8 km · Altadena91104 2.9 km · Pasadena91103 3.1 km · Pasadena91199 4.8 km · Pasadena91102 4.9 km · Pasadena91109 4.9 km · Pasadena91110 4.9 km · Pasadena91114 4.9 km · Pasadena
Frequently asked questions
What city is ZIP code 91001 in?
ZIP code 91001 is in Altadena, California.
What county is 91001 in?
91001 belongs to Los Angeles in California.
What time zone is ZIP code 91001 in?
91001 is in the America/Los_Angeles time zone.