ZIP Code 37938 — Knoxville, TN
37938 is a standard (street delivery) ZIP code serving Knoxville, Tennessee, in Knox 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 37938 at a glance
| ZIP code | 37938 |
|---|---|
| Primary city | Knoxville |
| State | Tennessee (TN) |
| County | Knox FIPS 47093 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 17,437 |
| Coordinates | 36.124990, -83.938150 |
How ZIP+4 works in 37938
The four digits after the hyphen encode a delivery segment inside 37938. 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 37938 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.
Other ZIP codes in Knoxville
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 37938.
| ZIP | City | Distance |
|---|---|---|
| 37918 | Knoxville, TN | 4.7 mi |
| 37754 | Heiskell, TN | 5.3 mi |
| 37721 | Corryton, TN | 7.3 mi |
| 37849 | Powell, TN | 7.5 mi |
| 37705 | Andersonville, TN | 8.2 mi |
| 37912 | Knoxville, TN | 8.4 mi |
| 37917 | Knoxville, TN | 8.6 mi |
| 37828 | Norris, TN | 8.9 mi |
| 37924 | Knoxville, TN | 9.8 mi |
| 37921 | Knoxville, TN | 10.7 mi |
| 37915 | Knoxville, TN | 10.9 mi |
| 37807 | Maynardville, TN | 11.2 mi |
Questions about 37938
What is the ZIP+4 code for 37938?
37938 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 37938, you need to look up a specific street address to get them.
What city is 37938?
37938 is assigned to Knoxville, Tennessee, in Knox 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.