Pekin, IL ZIP Codes
Pekin, Illinois has 3 ZIP codes: for street addresses, for PO boxes and for a single organization.
Mail addressed to Pekin covers nearby places too.
Where the 61554 ZIP code reaches
Tap or point to an area to see its ZIP code.Full-size map
61555 and 61558 have no area on the map: they are PO box or single-organization ZIP codes. Dashed line: Pekin city limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and place limits (2024).
Check an address in Pekin
Street ranges from the Census Bureau, 2026. PO box and organization ZIP codes are not found by street. A new street may be missing: address not found?
Pekin PO box and business ZIP codes
| ZIP | Type and post office or station |
|---|---|
| 61554 | street delivery Pekin |
| 61555 | PO boxes at the Pekin post office Pekin |
| 61558 | one organization Pekin |
Why your mail may say Pekin when you live outside it
Pekin ZIP codes also cover Cincinnati Township, Elm Grove Township and Groveland Township, so a letter addressed to Pekin can go to a home outside the city limits.
A ZIP code does not set your city, school district or tax. Tazewell County property records show which city you are in.
Pekin ZIP code questions
What is the main ZIP code for Pekin?
61554, the ZIP code of the main Pekin post office at 514 Broadway St.
Which Pekin ZIP codes are for PO boxes only?
61555. Mail to it goes to boxes at the post office, not to street addresses.
What county is Pekin in?
Tazewell County, with parts in Peoria County.
ZIP codes for towns near Pekin
More towns near Pekin: Champaign, Rock Island, Urbana, Bettendorf, Davenport, Joliet, Oswego, Quincy, Plainfield.
Sources and last checked
USPS ZIP Locale Detail (October 1, 2026), GeoNames (CC BY 4.0), U.S. Census Bureau, HUD-USPS crosswalk.
Checked October 20, 2026. Sources · How we build our lists · Corrections