ZIP Code 62233 — Chester, IL
62233 is a standard (street delivery) ZIP code serving Chester, Illinois, in Randolph 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 62233 at a glance
| ZIP code | 62233 |
|---|---|
| Primary city | Chester |
| State | Illinois (IL) |
| County | Randolph FIPS 17157 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 8,326 |
| Coordinates | 37.937190, -89.788420 |
How ZIP+4 works in 62233
The four digits after the hyphen encode a delivery segment inside 62233. 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 62233 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 62233.
| ZIP | City | Distance |
|---|---|---|
| 62288 | Steeleville, IL | 6.5 mi |
| 62241 | Ellis Grove, IL | 7.6 mi |
| 62297 | Walsh, IL | 7.9 mi |
| 62280 | Rockwood, IL | 10.1 mi |
| 62272 | Percy, IL | 10.4 mi |
| 62997 | Willisville, IL | 11.3 mi |
| 62916 | Campbell Hill, IL | 11.9 mi |
| 62261 | Modoc, IL | 12.5 mi |
| 63673 | Saint Mary, MO | 12.9 mi |
| 62286 | Sparta, IL | 13.1 mi |
| 62242 | Evansville, IL | 13.6 mi |
| 62238 | Cutler, IL | 15.8 mi |
Questions about 62233
What is the ZIP+4 code for 62233?
62233 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 62233, you need to look up a specific street address to get them.
What city is 62233?
62233 is assigned to Chester, Illinois, in Randolph 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.