Ontario, CA Zip Codes: Complete List & Map

Looking for the zip code of Ontario, California? You've come to the right place. Ontario, CA, uses several zip codes, and this guide provides a comprehensive list, a helpful map, and answers to frequently asked questions. In our experience, knowing the correct zip code is crucial for accurate mail delivery, online transactions, and various location-based services.

Ontario, CA Zip Code List

Here's a list of all the zip codes currently used in Ontario, California:

• 91758
• 91761
• 91762
• 91764

Ontario, CA Zip Code Map

Unfortunately, I am unable to provide a visual map. However, you can easily find an interactive zip code map of Ontario, CA, by searching online using terms like "Ontario CA zip code map" on Google Maps. These maps visually display the boundaries of each zip code within the city.

Understanding Zip Codes

Zip codes, or Zone Improvement Plan codes, were introduced by the United States Postal Service (USPS) in 1963 to streamline mail delivery. They are numerical codes that identify specific geographic areas within the United States. According to USPS data, using the correct zip code can significantly improve the speed and accuracy of mail delivery.

Components of a Zip Code

A zip code consists of five digits. The first digit designates a broad geographic area of the country, ranging from 0 in the Northeast to 9 in the West. The next two digits represent a specific region or metropolitan area within that broader area. The final two digits designate specific post offices or delivery zones.

Zip+4 Codes

In the 1980s, the USPS introduced Zip+4 codes, which add four digits to the basic five-digit zip code. These additional digits identify specific blocks, buildings, or even individual addresses, further improving delivery accuracy. While not always required, using Zip+4 codes can help ensure that your mail reaches its intended recipient as quickly and efficiently as possible. — Wellcare NC Provider Phone Number: Find It Fast

Why Knowing the Correct Zip Code Matters

Using the correct zip code is essential for several reasons:

• Accurate Mail Delivery: Ensures your mail reaches the correct destination without delays.
• Online Transactions: Many online forms require a zip code for address verification and shipping purposes.
• Location-Based Services: Zip codes are used by businesses and organizations to target specific geographic areas for marketing and advertising.
• Emergency Services: In emergency situations, providing the correct zip code can help first responders quickly locate you.

How to Find a Zip Code

If you're unsure of the zip code for a specific address in Ontario, CA, you can use the USPS website's zip code lookup tool. Simply enter the address, and the tool will provide the corresponding zip code.

Ontario, CA: An Overview

Ontario is a city in southwestern San Bernardino County in California, United States, located in the western part of the Inland Empire metropolitan area. As our analysis shows, it lies just east of Los Angeles County and is part of the Greater Los Angeles Area.

History

Ontario was founded in 1882 by Canadian brothers George and William Chaffey. They named the city after their home province of Ontario, Canada. The city quickly grew as an agricultural center, particularly known for its citrus production.

Economy

Today, Ontario has a diverse economy. Key sectors include:

• Logistics and Transportation: Home to the Ontario International Airport (ONT), a major cargo and passenger hub.
• Manufacturing: A significant manufacturing base, producing a variety of goods.
• Retail: A major retail destination, with several large shopping centers and commercial areas.

Demographics

According to the United States Census Bureau, Ontario has a diverse population. As of the 2020 census, the city had a population of approximately 175,000 residents.

FAQ About Ontario, CA Zip Codes

Q: What is the main zip code for Ontario, CA?

While Ontario has multiple zip codes, there isn't one single "main" zip code. The most appropriate zip code depends on the specific location within the city. Refer to the list above or use the USPS zip code lookup tool to find the correct zip code for a particular address.

Q: How many zip codes are in Ontario, CA?

Ontario, CA, currently has four zip codes: 91758, 91761, 91762, and 91764.

Q: What is the zip code for Ontario International Airport (ONT)?

The zip code for Ontario International Airport (ONT) is 91761. — Columbus Day Mail Delivery: What You Need To Know

Q: Where can I find a map of Ontario, CA zip codes?

Search online for "Ontario CA zip code map" on Google Maps or other mapping services to find an interactive map. — Dining Table & Chairs: Your Ultimate Buying Guide

Q: Why does Ontario have multiple zip codes?

Larger cities like Ontario often have multiple zip codes to accommodate the high volume of mail and packages being delivered. Multiple zip codes allow the USPS to route mail more efficiently.

Q: Are zip codes in Ontario always the same?

While zip codes are generally stable, the USPS can occasionally update or modify zip code boundaries as needed to improve mail delivery efficiency. It's always a good idea to double-check the zip code using the USPS website or other reliable sources.

Q: What is the Zip+4 code and how is it used in Ontario, CA?

The Zip+4 code adds four digits to the standard five-digit zip code to identify a more specific location. While not mandatory, using the Zip+4 code can improve the accuracy of mail delivery in Ontario, CA.

Conclusion

Knowing the correct zip code for Ontario, CA, is crucial for ensuring accurate mail delivery, smooth online transactions, and access to location-based services. Use this guide to find the right zip code. And for more information, visit the official USPS website. Understanding zip codes helps streamline your interactions and connections within this dynamic California city. If you have any questions related to real estate in Ontario, CA feel free to reach out!