ZIP Code 61554 — Pekin, IL
61554 is a standard (street delivery) ZIP code serving Pekin, Illinois, in Tazewell County. To mail something here you only need these five digits — but the four-digit extension narrows delivery to a single point, and it is what USPS bulk postage discounts are priced on.
ZIP code 61554 at a glance
| ZIP code | 61554 |
|---|---|
| Primary city | Pekin |
| State | Illinois (IL) |
| County | Tazewell FIPS 17179 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 40,577 |
| Coordinates | 40.544410, -89.621810 |
How ZIP+4 works in 61554
The four digits after the hyphen encode a delivery segment inside 61554. In practice one segment usually means:
- One side of one block — odd numbers on a street between two cross streets
- A single large building, or one floor of it
- A group of PO boxes, sometimes a single box
- A single business that receives enough mail to warrant its own code
That is why 61554 has no single ZIP+4: two neighbors across the street from each other usually have different ones. Enter a street address above and we will return the exact nine-digit code along with the standardized USPS address format.
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 61554.
| ZIP | City | Distance |
|---|---|---|
| 61564 | South Pekin, IL | 3.6 mi |
| 61535 | Groveland, IL | 5.9 mi |
| 61607 | Peoria, IL | 6.7 mi |
| 61610 | Creve Coeur, IL | 6.9 mi |
| 61547 | Mapleton, IL | 7.6 mi |
| 61568 | Tremont, IL | 8 mi |
| 61539 | Kingston Mines, IL | 8.1 mi |
| 61605 | Peoria, IL | 9.1 mi |
| 61534 | Green Valley, IL | 9.2 mi |
| 61602 | Peoria, IL | 9.4 mi |
| 61550 | Morton, IL | 10.5 mi |
| 61625 | Peoria, IL | 10.6 mi |
Questions about 61554
What is the ZIP+4 code for 61554?
61554 is the five-digit ZIP code. The ZIP+4 adds four more digits that identify a specific delivery point — usually one side of a city block, a single building, or a group of PO boxes. Because those four digits change from address to address within 61554, you need to look up a specific street address to get them.
What city is 61554?
61554 is assigned to Pekin, Illinois, in Tazewell County.
Do I need to use the ZIP+4?
It is optional for ordinary mail, but it speeds up sorting and it is required for most USPS bulk-mail postage discounts. Many address-verification and e-commerce systems also use ZIP+4 to confirm a delivery point exists.
Need thousands of these?
Upload a CSV and get ZIP+4, county, carrier route, and delivery-point data appended to every row — or call the API directly.