Peoria, Illinois ZIP Codes
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This is the complete guide to Peoria, Illinois ZIP codes — all 29 codes in one place, from 61601 to 61656. If you have been searching for the zip code of Peoria Illinois USA, the full list below covers every delivery area in the city.
Peoria lies primarily in Peoria County, Illinois. Because ZIP codes follow mail delivery routes rather than neighborhood lines, different parts of Peoria use different codes. The list below is sorted numerically, and our free tools can pinpoint the exact ZIP code — including the ZIP+4 add-on — for any Peoria address.
Complete List of Peoria ZIP Codes
All 29 peoria zip codes, sorted from lowest to highest (61601 to 61656):
About Peoria ZIP Codes
Peoria is served by 29 ZIP codes (61601–61656). USPS draws ZIP code boundaries around delivery routes, so a code can cover a compact downtown district, a spread-out suburb, or a single high-volume mailer.
Peoria sits mainly in Peoria County, Illinois. ZIP codes here serve downtown districts, residential neighborhoods, business centers, and surrounding communities that share a Peoria mailing address.
Mailing to Peoria? 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 Peoria address with our free Address Verification tool, and find the full 9-digit code with the ZIP+4 Lookup.
How to Find Your Peoria ZIP Code
Enter a Peoria street address to get its exact 5-digit ZIP code instantly.
Look up Peoria, 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 Peoria have?
Peoria has 29 ZIP codes, ranging from 61601 to 61656. The complete list is on this page.
What is the ZIP code of Peoria, Illinois?
There is no single ZIP code for Peoria — the city uses 29 ZIP codes (61601 to 61656). Enter your street address in our ZIP Code by Address tool to find your exact one.
What county is Peoria, Illinois in?
Peoria is primarily in Peoria County, Illinois.
What is the ZIP code range for Peoria?
ZIP codes in Peoria start at 61601 and go up to 61656. 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 Peoria have 29 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 Peoria 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 Peoria?
Use our free ZIP+4 Lookup tool — enter your Peoria street address to get the full 9-digit code.
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