ZIP Code 62425 — Dundas, IL
62425 is a standard (street delivery) ZIP code serving Dundas, Illinois, in Richland 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 62425 at a glance
| ZIP code | 62425 |
|---|---|
| Primary city | Dundas |
| State | Illinois (IL) |
| County | Richland FIPS 17159 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 838 |
| Coordinates | 38.833630, -88.103830 |
How ZIP+4 works in 62425
The four digits after the hyphen encode a delivery segment inside 62425. 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 62425 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 62425.
| ZIP | City | Distance |
|---|---|---|
| 62475 | West Liberty, IL | 4.7 mi |
| 62459 | Sainte Marie, IL | 7.8 mi |
| 62450 | Olney, IL | 8.3 mi |
| 62448 | Newton, IL | 10.1 mi |
| 62421 | Claremont, IL | 10.3 mi |
| 62434 | Ingraham, IL | 11.9 mi |
| 62868 | Noble, IL | 12.5 mi |
| 62480 | Willow Hill, IL | 12.6 mi |
| 62879 | Sailor Springs, IL | 14.5 mi |
| 62466 | Sumner, IL | 15.5 mi |
| 62449 | Oblong, IL | 15.7 mi |
| 62419 | Calhoun, IL | 16 mi |
Questions about 62425
What is the ZIP+4 code for 62425?
62425 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 62425, you need to look up a specific street address to get them.
What city is 62425?
62425 is assigned to Dundas, Illinois, in Richland 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.