California Zip Code Guide

California, the most populous state in the United States, is known for its diverse geography, climate, and culture. With 1,196 zip codes across the state, navigating the California zip code guide can be overwhelming. In this comprehensive guide, we will delve into the world of California zip codes, exploring the different regions, cities, and zip code ranges.
Introduction to California Zip Codes

California zip codes are five-digit numbers that identify specific geographic locations within the state. The first digit of a California zip code represents the group of states where the zip code is located. In California’s case, the first digit is always “9”. The next two digits represent the regional area, such as the San Francisco Bay Area or the Los Angeles metropolitan area. The final two digits represent the specific post office or delivery area.
California Zip Code Regions
California can be divided into several regions, each with its unique characteristics and zip code ranges. The main regions include:
- Northern California: This region includes the San Francisco Bay Area, the Sacramento Valley, and the North Coast. Zip codes in this region range from 94000 to 96199.
- Central California: This region includes the Central Valley, the Central Coast, and the Sierra Nevada mountains. Zip codes in this region range from 93200 to 93999.
- Southern California: This region includes the Los Angeles metropolitan area, the Inland Empire, and the San Diego metropolitan area. Zip codes in this region range from 90000 to 93199.
Region | Zip Code Range |
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Northern California | 94000-96199 |
Central California | 93200-93999 |
Southern California | 90000-93199 |

Major Cities in California

California is home to many major cities, each with its unique culture and zip code ranges. Some of the most populous cities in California include:
Los Angeles: With a population of over 4 million people, Los Angeles is the most populous city in California. The city's zip codes range from 90001 to 90084.
San Diego: Located in Southern California, San Diego is the second-most populous city in the state. The city's zip codes range from 92101 to 92199.
San Jose: Located in the San Francisco Bay Area, San Jose is the third-most populous city in California. The city's zip codes range from 95101 to 95196.
Sacramento: The state capital of California, Sacramento is a major city in the northern part of the state. The city's zip codes range from 95800 to 95899.
City | Zip Code Range |
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Los Angeles | 90001-90084 |
San Diego | 92101-92199 |
San Jose | 95101-95196 |
Sacramento | 95800-95899 |
Zip Code Lookups and Maps
There are several resources available for looking up California zip codes and viewing zip code maps. The United States Postal Service (USPS) website provides a zip code lookup tool that allows you to search for zip codes by address, city, or state. You can also use online mapping tools like Google Maps or MapQuest to view zip code boundaries and find specific zip codes.
In addition to online resources, there are also several zip code maps available for purchase or download. These maps can be useful for businesses, marketers, and individuals who need to navigate the complex world of California zip codes.
Conclusion
In conclusion, the California zip code guide is a complex and multifaceted system that requires careful navigation. By understanding the different regions, cities, and zip code ranges in California, you can more easily find the information you need and navigate the state with confidence. Whether you’re a business owner, marketer, or individual, this guide provides the essential information you need to succeed in California.
What is the first digit of a California zip code?
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The first digit of a California zip code is always “9”.
What is the zip code range for Los Angeles?
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The zip code range for Los Angeles is 90001-90084.
How can I look up a California zip code?
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You can look up a California zip code using the United States Postal Service (USPS) website or online mapping tools like Google Maps or MapQuest.