ZIP Code 38401 — Columbia, TN
38401 is a standard (street delivery) ZIP code serving Columbia, Tennessee, in Maury 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 38401 at a glance
| ZIP code | 38401 |
|---|---|
| Primary city | Columbia |
| State | Tennessee (TN) |
| County | Maury FIPS 47119 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 67,482 |
| Coordinates | 35.629550, -87.020970 |
How ZIP+4 works in 38401
The four digits after the hyphen encode a delivery segment inside 38401. 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 38401 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 38401.
| ZIP | City | Distance |
|---|---|---|
| 37174 | Spring Hill, TN | 9.3 mi |
| 38451 | Culleoka, TN | 11.3 mi |
| 38482 | Santa Fe, TN | 11.8 mi |
| 38487 | Williamsport, TN | 13.6 mi |
| 37179 | Thompsons Station, TN | 13.6 mi |
| 38474 | Mount Pleasant, TN | 14 mi |
| 38472 | Lynnville, TN | 17.4 mi |
| 37091 | Lewisburg, TN | 17.5 mi |
| 38461 | Hampshire, TN | 18 mi |
| 38476 | Primm Springs, TN | 18.2 mi |
| 37064 | Franklin, TN | 18.3 mi |
| 37034 | Chapel Hill, TN | 18.5 mi |
Questions about 38401
What is the ZIP+4 code for 38401?
38401 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 38401, you need to look up a specific street address to get them.
What city is 38401?
38401 is assigned to Columbia, Tennessee, in Maury 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.