ZIP Code 38637 — Horn Lake, MS
38637 is a standard (street delivery) ZIP code serving Horn Lake, Mississippi, in DeSoto 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 38637 at a glance
| ZIP code | 38637 |
|---|---|
| Primary city | Horn Lake |
| State | Mississippi (MS) |
| County | DeSoto FIPS 28033 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 26,647 |
| Coordinates | 34.951050, -90.050040 |
How ZIP+4 works in 38637
The four digits after the hyphen encode a delivery segment inside 38637. 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 38637 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 38637.
| ZIP | City | Distance |
|---|---|---|
| 38671 | Southaven, MS | 3.2 mi |
| 38651 | Nesbit, MS | 4.9 mi |
| 38680 | Walls, MS | 5.4 mi |
| 38672 | Southaven, MS | 5.8 mi |
| 38116 | Memphis, TN | 6 mi |
| 38109 | Memphis, TN | 7.5 mi |
| 38641 | Lake Cormorant, MS | 8.3 mi |
| 38131 | Memphis, TN | 8.6 mi |
| 38132 | Memphis, TN | 8.7 mi |
| 38118 | Memphis, TN | 9 mi |
| 38106 | Memphis, TN | 10.3 mi |
| 38632 | Hernando, MS | 10.7 mi |
Questions about 38637
What is the ZIP+4 code for 38637?
38637 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 38637, you need to look up a specific street address to get them.
What city is 38637?
38637 is assigned to Horn Lake, Mississippi, in DeSoto 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.