ZIP Code 62423 — Dennison, IL
62423 is a standard (street delivery) ZIP code serving Dennison, Illinois, in Clark 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 62423 at a glance
| ZIP code | 62423 |
|---|---|
| Primary city | Dennison |
| State | Illinois (IL) |
| County | Clark FIPS 17023 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 546 |
| Coordinates | 39.462080, -87.581900 |
How ZIP+4 works in 62423
The four digits after the hyphen encode a delivery segment inside 62423. 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 62423 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 62423.
| ZIP | City | Distance |
|---|---|---|
| 47885 | West Terre Haute, IN | 6.5 mi |
| 47876 | Saint Mary Of The Woods, IN | 7.2 mi |
| 62441 | Marshall, IL | 7.8 mi |
| 61955 | Vermilion, IL | 8.3 mi |
| 47870 | Prairieton, IN | 8.6 mi |
| 47809 | Terre Haute, IN | 9.2 mi |
| 47807 | Terre Haute, IN | 9.6 mi |
| 47863 | New Goshen, IN | 10.4 mi |
| 47804 | Terre Haute, IN | 10.5 mi |
| 61944 | Paris, IL | 11.4 mi |
| 47802 | Terre Haute, IN | 11.9 mi |
| 47880 | Shepardsville, IN | 12.9 mi |
Questions about 62423
What is the ZIP+4 code for 62423?
62423 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 62423, you need to look up a specific street address to get them.
What city is 62423?
62423 is assigned to Dennison, Illinois, in Clark 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.