ZIP Code 61038 — Garden Prairie, IL
61038 is a standard (street delivery) ZIP code serving Garden Prairie, Illinois, in Boone 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 61038 at a glance
| ZIP code | 61038 |
|---|---|
| Primary city | Garden Prairie |
| State | Illinois (IL) |
| County | Boone FIPS 17007 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,274 |
| Coordinates | 42.263440, -88.735860 |
How ZIP+4 works in 61038
The four digits after the hyphen encode a delivery segment inside 61038. 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 61038 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 61038.
| ZIP | City | Distance |
|---|---|---|
| 61008 | Belvidere, IL | 5.4 mi |
| 60152 | Marengo, IL | 5.9 mi |
| 61012 | Capron, IL | 10 mi |
| 60135 | Genoa, IL | 10.8 mi |
| 61065 | Poplar Grove, IL | 11 mi |
| 60180 | Union, IL | 11.4 mi |
| 61016 | Cherry Valley, IL | 11.7 mi |
| 60145 | Kingston, IL | 11.9 mi |
| 61112 | Rockford, IL | 12.3 mi |
| 61011 | Caledonia, IL | 12.5 mi |
| 60033 | Harvard, IL | 12.7 mi |
| 61114 | Rockford, IL | 13.3 mi |
Questions about 61038
What is the ZIP+4 code for 61038?
61038 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 61038, you need to look up a specific street address to get them.
What city is 61038?
61038 is assigned to Garden Prairie, Illinois, in Boone 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.