ZIP Code 37180 — Unionville, TN
37180 is a standard (street delivery) ZIP code serving Unionville, Tennessee, in Bedford 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 37180 at a glance
| ZIP code | 37180 |
|---|---|
| Primary city | Unionville |
| State | Tennessee (TN) |
| County | Bedford FIPS 47003 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 3,397 |
| Coordinates | 35.618900, -86.576790 |
How ZIP+4 works in 37180
The four digits after the hyphen encode a delivery segment inside 37180. 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 37180 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 37180.
| ZIP | City | Distance |
|---|---|---|
| 37034 | Chapel Hill, TN | 6.6 mi |
| 37060 | Eagleville, TN | 9.6 mi |
| 37020 | Bell Buckle, TN | 10 mi |
| 37153 | Rockvale, TN | 10.1 mi |
| 37160 | Shelbyville, TN | 11.8 mi |
| 37046 | College Grove, TN | 13.6 mi |
| 37037 | Christiana, TN | 13.8 mi |
| 37128 | Murfreesboro, TN | 14 mi |
| 37091 | Lewisburg, TN | 14 mi |
| 37183 | Wartrace, TN | 17.2 mi |
| 37019 | Belfast, TN | 17.4 mi |
| 37127 | Murfreesboro, TN | 17.9 mi |
Questions about 37180
What is the ZIP+4 code for 37180?
37180 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 37180, you need to look up a specific street address to get them.
What city is 37180?
37180 is assigned to Unionville, Tennessee, in Bedford 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.