ZIP Code 62956 — Karnak, IL
62956 is a standard (street delivery) ZIP code serving Karnak, Illinois, in Massac 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 62956 at a glance
| ZIP code | 62956 |
|---|---|
| Primary city | Karnak |
| State | Illinois (IL) |
| County | Massac FIPS 17127 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,172 |
| Coordinates | 37.278050, -88.931270 |
How ZIP+4 works in 62956
The four digits after the hyphen encode a delivery segment inside 62956. 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 62956 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 62956.
| ZIP | City | Distance |
|---|---|---|
| 62941 | Grand Chain, IL | 3.4 mi |
| 62908 | Belknap, IL | 4.1 mi |
| 62953 | Joppa, IL | 6.8 mi |
| 62923 | Cypress, IL | 7.1 mi |
| 42022 | Bandana, KY | 9.1 mi |
| 62995 | Vienna, IL | 10.1 mi |
| 62970 | Olmsted, IL | 10.3 mi |
| 62943 | Grantsburg, IL | 11.5 mi |
| 42056 | La Center, KY | 11.9 mi |
| 62992 | Ullin, IL | 12.3 mi |
| 42053 | Kevil, KY | 12.4 mi |
| 62960 | Metropolis, IL | 12.6 mi |
Questions about 62956
What is the ZIP+4 code for 62956?
62956 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 62956, you need to look up a specific street address to get them.
What city is 62956?
62956 is assigned to Karnak, Illinois, in Massac 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.