ZIP Code 62905 — Alto Pass, IL
62905 is a standard (street delivery) ZIP code serving Alto Pass, Illinois, in Union 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 62905 at a glance
| ZIP code | 62905 |
|---|---|
| Primary city | Alto Pass |
| State | Illinois (IL) |
| County | Union FIPS 17181 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 779 |
| Coordinates | 37.573810, -89.358670 |
How ZIP+4 works in 62905
The four digits after the hyphen encode a delivery segment inside 62905. 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 62905 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 62905.
| ZIP | City | Distance |
|---|---|---|
| 62975 | Pomona, IL | 4.8 mi |
| 62998 | Wolf Lake, IL | 6.2 mi |
| 62920 | Cobden, IL | 7.1 mi |
| 62942 | Grand Tower, IL | 7.7 mi |
| 62903 | Carbondale, IL | 8.1 mi |
| 62952 | Jonesboro, IL | 10.7 mi |
| 62958 | Makanda, IL | 11.6 mi |
| 62940 | Gorham, IL | 12.1 mi |
| 62906 | Anna, IL | 12.3 mi |
| 63732 | Altenburg, MO | 12.8 mi |
| 62966 | Murphysboro, IL | 13.5 mi |
| 62901 | Carbondale, IL | 14.1 mi |
Questions about 62905
What is the ZIP+4 code for 62905?
62905 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 62905, you need to look up a specific street address to get them.
What city is 62905?
62905 is assigned to Alto Pass, Illinois, in Union 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.