ZIP Code 62370 — Rockport, IL
62370 is a standard (street delivery) ZIP code serving Rockport, Illinois, in Pike 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 62370 at a glance
| ZIP code | 62370 |
|---|---|
| Primary city | Rockport |
| State | Illinois (IL) |
| County | Pike FIPS 17149 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 309 |
| Coordinates | 39.518180, -90.998810 |
How ZIP+4 works in 62370
The four digits after the hyphen encode a delivery segment inside 62370. 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 62370 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 62370.
| ZIP | City | Distance |
|---|---|---|
| 63433 | Ashburn, MO | 6.4 mi |
| 62366 | Pleasant Hill, IL | 6.8 mi |
| 62356 | New Canton, IL | 7.3 mi |
| 63353 | Louisiana, MO | 8.2 mi |
| 62363 | Pittsfield, IL | 12.8 mi |
| 63336 | Clarksville, MO | 13.1 mi |
| 62312 | Barry, IL | 13.3 mi |
| 62357 | New Salem, IL | 13.7 mi |
| 62355 | Nebo, IL | 13.9 mi |
| 62345 | Kinderhook, IL | 14.7 mi |
| 63467 | Saverton, MO | 16.9 mi |
| 63441 | Frankford, MO | 17.1 mi |
Questions about 62370
What is the ZIP+4 code for 62370?
62370 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 62370, you need to look up a specific street address to get them.
What city is 62370?
62370 is assigned to Rockport, Illinois, in Pike 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.