ZIP Code 62639 — Frederick, IL
62639 is a standard (street delivery) ZIP code serving Frederick, Illinois, in Schuyler 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 62639 at a glance
| ZIP code | 62639 |
|---|---|
| Primary city | Frederick |
| State | Illinois (IL) |
| County | Schuyler FIPS 17169 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 215 |
| Coordinates | 40.043500, -90.487530 |
How ZIP+4 works in 62639
The four digits after the hyphen encode a delivery segment inside 62639. 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 62639 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 62639.
| ZIP | City | Distance |
|---|---|---|
| 62618 | Beardstown, IL | 5.5 mi |
| 62681 | Rushville, IL | 7.6 mi |
| 62622 | Bluff Springs, IL | 8.9 mi |
| 62624 | Browning, IL | 10.5 mi |
| 62611 | Arenzville, IL | 11.9 mi |
| 62378 | Versailles, IL | 12.9 mi |
| 62319 | Camden, IL | 14.9 mi |
| 62353 | Mount Sterling, IL | 15.1 mi |
| 62691 | Virginia, IL | 15.2 mi |
| 61501 | Astoria, IL | 15.7 mi |
| 62665 | Meredosia, IL | 15.9 mi |
| 61452 | Littleton, IL | 16.2 mi |
Questions about 62639
What is the ZIP+4 code for 62639?
62639 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 62639, you need to look up a specific street address to get them.
What city is 62639?
62639 is assigned to Frederick, Illinois, in Schuyler 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.