ZIP Code 62959 — Marion, IL
62959 is a standard (street delivery) ZIP code serving Marion, Illinois, in Williamson 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 62959 at a glance
| ZIP code | 62959 |
|---|---|
| Primary city | Marion |
| State | Illinois (IL) |
| County | Williamson FIPS 17199 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 27,793 |
| Coordinates | 37.714420, -88.914630 |
How ZIP+4 works in 62959
The four digits after the hyphen encode a delivery segment inside 62959. 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 62959 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 62959.
| ZIP | City | Distance |
|---|---|---|
| 62933 | Energy, IL | 7.1 mi |
| 62951 | Johnston City, IL | 7.7 mi |
| 62974 | Pittsburg, IL | 8.2 mi |
| 62922 | Creal Springs, IL | 8.4 mi |
| 62948 | Herrin, IL | 9.5 mi |
| 62918 | Carterville, IL | 10.6 mi |
| 62841 | Freeman Spur, IL | 10.9 mi |
| 62921 | Colp, IL | 11 mi |
| 62902 | Carbondale, IL | 11.3 mi |
| 62939 | Goreville, IL | 12 mi |
| 62896 | West Frankfort, IL | 12.3 mi |
| 62915 | Cambria, IL | 12.3 mi |
Questions about 62959
What is the ZIP+4 code for 62959?
62959 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 62959, you need to look up a specific street address to get them.
What city is 62959?
62959 is assigned to Marion, Illinois, in Williamson 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.