Chicago, Illinois ZIP Codes
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What is the zip code for Chicago, Illinois? The honest answer is that Chicago does not have just one — it has 84 ZIP codes, from 60601 to 60701. This page gives you the complete list of Chicago ZIP codes, plus free tools to find the exact code for any street address in the city.
Chicago sits primarily in Cook County, Illinois. Its ZIP codes are assigned by the U.S. Postal Service to delivery areas across the city — homes, businesses, government offices, and PO boxes. Scroll down for the full list, or jump straight to your address with the ZIP code by address lookup.
Complete List of Chicago ZIP Codes
All 84 chicago zip codes, sorted from lowest to highest (60601 to 60701):
About Chicago ZIP Codes
ZIP codes in Chicago, Illinois run from 60601 to 60701 — 84 codes in total. Each one maps to a USPS delivery area, which is why the correct code depends on the exact street address, not just the city name.
Chicago sits mainly in Cook County, Illinois. ZIP codes here serve downtown districts, residential neighborhoods, business centers, and surrounding communities that share a Chicago mailing address.
Mailing to Chicago? Using the correct ZIP code — and the ZIP+4 add-on where it matters — keeps letters and packages moving without delays or returns. Before you send, you can confirm any Chicago address with our free Address Verification tool, and find the full 9-digit code with the ZIP+4 Lookup.
How to Find Your Chicago ZIP Code
Enter a Chicago street address to get its exact 5-digit ZIP code instantly.
Look up Chicago, Illinois to see the full list of ZIP codes used across the city.
Explore ZIP codes for every covered city in Illinois on the state page.
Frequently Asked Questions
How many ZIP codes does Chicago have?
Chicago has 84 ZIP codes, ranging from 60601 to 60701. The complete list is on this page.
What is the ZIP code of Chicago, Illinois?
There is no single ZIP code for Chicago — the city uses 84 ZIP codes (60601 to 60701). Enter your street address in our ZIP Code by Address tool to find your exact one.
What county is Chicago, Illinois in?
Chicago is primarily in Cook County, Illinois.
What is the ZIP code range for Chicago?
ZIP codes in Chicago start at 60601 and go up to 60701. Codes are assigned by delivery area, so the lowest codes generally sit closest to the city center and rise as you move outward.
Why does Chicago have 84 different ZIP codes?
The Postal Service creates a new ZIP code whenever a delivery area grows too large for one code to handle efficiently. A city the size of Chicago has many delivery routes — neighborhoods, business districts, and high-volume mailers each need their own code so mail can be sorted and delivered accurately.
How do I find my ZIP+4 code in Chicago?
Use our free ZIP+4 Lookup tool — enter your Chicago street address to get the full 9-digit code.
More Cities in Illinois
ZIP codes for other cities in Illinois:
Related ZIP Code Tools
Find the ZIP code for any Chicago street address.
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