ZIP Code 37327 — Dunlap, TN
37327 is a standard (street delivery) ZIP code serving Dunlap, Tennessee, in Sequatchie 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 37327 at a glance
| ZIP code | 37327 |
|---|---|
| Primary city | Dunlap |
| State | Tennessee (TN) |
| County | Sequatchie FIPS 47153 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 13,480 |
| Coordinates | 35.422510, -85.399930 |
How ZIP+4 works in 37327
The four digits after the hyphen encode a delivery segment inside 37327. 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 37327 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 37327.
| ZIP | City | Distance |
|---|---|---|
| 37365 | Palmer, TN | 8.6 mi |
| 37338 | Graysville, TN | 10.7 mi |
| 37339 | Gruetli Laager, TN | 13.5 mi |
| 37377 | Signal Mountain, TN | 14.9 mi |
| 37379 | Soddy Daisy, TN | 15.5 mi |
| 37397 | Whitwell, TN | 16.1 mi |
| 37373 | Sale Creek, TN | 16.8 mi |
| 37305 | Beersheba Springs, TN | 17.2 mi |
| 37313 | Coalmont, TN | 17.3 mi |
| 37367 | Pikeville, TN | 17.6 mi |
| 38585 | Spencer, TN | 18.5 mi |
| 37387 | Tracy City, TN | 20.3 mi |
Questions about 37327
What is the ZIP+4 code for 37327?
37327 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 37327, you need to look up a specific street address to get them.
What city is 37327?
37327 is assigned to Dunlap, Tennessee, in Sequatchie 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.