ZIP Code 37150 — Red Boiling Springs, TN
37150 is a standard (street delivery) ZIP code serving Red Boiling Springs, Tennessee, in Macon 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 37150 at a glance
| ZIP code | 37150 |
|---|---|
| Primary city | Red Boiling Springs |
| State | Tennessee (TN) |
| County | Macon FIPS 47111 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 4,476 |
| Coordinates | 36.544370, -85.810820 |
How ZIP+4 works in 37150
The four digits after the hyphen encode a delivery segment inside 37150. 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 37150 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 37150.
| ZIP | City | Distance |
|---|---|---|
| 42140 | Gamaliel, KY | 7.7 mi |
| 38588 | Whitleyville, TN | 7.9 mi |
| 38575 | Moss, TN | 9.8 mi |
| 37083 | Lafayette, TN | 10.6 mi |
| 37145 | Pleasant Shade, TN | 12.5 mi |
| 42133 | Fountain Run, KY | 14.7 mi |
| 42167 | Tompkinsville, KY | 14.7 mi |
| 37057 | Dixon Springs, TN | 15.4 mi |
| 42151 | Hestand, KY | 15.6 mi |
| 38562 | Gainesboro, TN | 15.7 mi |
| 42153 | Holland, KY | 15.9 mi |
| 42157 | Mount Hermon, KY | 16.9 mi |
Questions about 37150
What is the ZIP+4 code for 37150?
37150 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 37150, you need to look up a specific street address to get them.
What city is 37150?
37150 is assigned to Red Boiling Springs, Tennessee, in Macon 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.