ZIP Code 37397 — Whitwell, TN
37397 is a standard (street delivery) ZIP code serving Whitwell, Tennessee, in Marion 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 37397 at a glance
| ZIP code | 37397 |
|---|---|
| Primary city | Whitwell |
| State | Tennessee (TN) |
| County | Marion FIPS 47115 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 10,488 |
| Coordinates | 35.210460, -85.518190 |
How ZIP+4 works in 37397
The four digits after the hyphen encode a delivery segment inside 37397. 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 37397 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 37397.
| ZIP | City | Distance |
|---|---|---|
| 37374 | Sequatchie, TN | 8.5 mi |
| 37405 | Chattanooga, TN | 9.1 mi |
| 37377 | Signal Mountain, TN | 10.1 mi |
| 37365 | Palmer, TN | 11.3 mi |
| 37347 | Jasper, TN | 11.8 mi |
| 37387 | Tracy City, TN | 12 mi |
| 37339 | Gruetli Laager, TN | 13 mi |
| 37419 | Chattanooga, TN | 13 mi |
| 37340 | Guild, TN | 13.1 mi |
| 37396 | Whiteside, TN | 14.4 mi |
| 37415 | Chattanooga, TN | 14.6 mi |
| 37313 | Coalmont, TN | 15.5 mi |
Questions about 37397
What is the ZIP+4 code for 37397?
37397 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 37397, you need to look up a specific street address to get them.
What city is 37397?
37397 is assigned to Whitwell, Tennessee, in Marion 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.