ZIP Code 38321 — Cedar Grove, TN
38321 is a standard (street delivery) ZIP code serving Cedar Grove, Tennessee, in Carroll 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 38321 at a glance
| ZIP code | 38321 |
|---|---|
| Primary city | Cedar Grove |
| State | Tennessee (TN) |
| County | Carroll FIPS 47017 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 2,397 |
| Coordinates | 35.833410, -88.530130 |
How ZIP+4 works in 38321
The four digits after the hyphen encode a delivery segment inside 38321. 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 38321 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 38321.
| ZIP | City | Distance |
|---|---|---|
| 38348 | Lavinia, TN | 7.2 mi |
| 38390 | Yuma, TN | 8.5 mi |
| 38235 | Mclemoresville, TN | 11.3 mi |
| 38344 | Huntingdon, TN | 11.4 mi |
| 38388 | Wildersville, TN | 12.6 mi |
| 38220 | Atwood, TN | 13.3 mi |
| 38258 | Trezevant, TN | 13.7 mi |
| 38351 | Lexington, TN | 13.7 mi |
| 38355 | Medina, TN | 13.8 mi |
| 38358 | Milan, TN | 14 mi |
| 38387 | Westport, TN | 14.7 mi |
| 38362 | Oakfield, TN | 16 mi |
Questions about 38321
What is the ZIP+4 code for 38321?
38321 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 38321, you need to look up a specific street address to get them.
What city is 38321?
38321 is assigned to Cedar Grove, Tennessee, in Carroll 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.