ZIP Code 91023 – Mount Wilson, California | ZipsCode.us
Home / California ZIP Codes / ZIP Code 91023
ZIP Code 91023
Mount Wilson, California · Los Angeles
ZIP code 91023 belongs to the city of Mount Wilson in California (Los Angeles). See all California ZIP Codes.
ZIP code 91023 belongs to Mount Wilson, California, in Los Angeles. If you are mailing a letter or package to this area, use Mount Wilson, CA 91023 in the address. On this page you will find the city and county for 91023, nearby ZIP codes in the same county, and free tools to look up any address in this ZIP code.
What City Is ZIP Code 91023?
The city for ZIP code 91023 is Mount Wilson, California. When you write an address in this area, the correct format is: Name, Street Address, Mount Wilson, CA 91023.
ZIP Code 91023 County and State
ZIP code 91023 is located in Los Angeles, California. For a complete list of cities and ZIP codes across the state, see the California ZIP Codes page.
Nearby ZIP Codes in Los Angeles
These ZIP codes are in the same county as 91023:
ZIP Code 91023 on the Map
The map below shows the approximate center of ZIP code 91023, near Mount Wilson, California. You can zoom in and drag the map to explore the area.
Map center is approximate (ZIP area center, around 34.2264, -118.0662). Map data © OpenStreetMap.
Find an Address in ZIP Code 91023
Need the full ZIP+4 code for a specific street address in Mount Wilson? Use the free ZIP+4 Lookup tool, or find any ZIP code from a street address with the ZIP Code by Address tool.
Frequently Asked Questions
What city is ZIP code 91023?
ZIP code 91023 is for Mount Wilson, California.
What county is ZIP code 91023 in?
ZIP code 91023 is in Los Angeles, California.
What state is ZIP code 91023 in?
ZIP code 91023 is in California (CA).
How do I find the ZIP+4 for an address in 91023?
Use the free ZIP+4 Lookup tool with the full street address to get the complete 9-digit ZIP code.
What are the nearby ZIP codes to 91023?
Nearby ZIP codes include 90001 (Los Angeles), 90002 (Los Angeles), 90003 (Los Angeles), 90004 (Los Angeles), 90005 (Los Angeles).
Related ZIP Code Tools
Find the ZIP code for any U.S. street address.
See which city and county any ZIP code belongs to.
Get the full 9-digit ZIP code for precise delivery.
Track packages sent to or from any U.S. address.
Search any U.S. ZIP code, city or address — free.