ZIP Code 37042 — Clarksville, TN
37042 is a standard (street delivery) ZIP code serving Clarksville, Tennessee, in Montgomery 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 37042 at a glance
| ZIP code | 37042 |
|---|---|
| Primary city | Clarksville |
| State | Tennessee (TN) |
| County | Montgomery FIPS 47125 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 87,652 |
| Coordinates | 36.568940, -87.412250 |
How ZIP+4 works in 37042
The four digits after the hyphen encode a delivery segment inside 37042. 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 37042 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.
Other ZIP codes in Clarksville
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 37042.
| ZIP | City | Distance |
|---|---|---|
| 37040 | Clarksville, TN | 5.4 mi |
| 42223 | Fort Campbell, KY | 5.8 mi |
| 37191 | Woodlawn, TN | 7.5 mi |
| 42262 | Oak Grove, KY | 8.2 mi |
| 37043 | Clarksville, TN | 11.1 mi |
| 37142 | Palmyra, TN | 11.9 mi |
| 37052 | Cunningham, TN | 13.4 mi |
| 42286 | Trenton, KY | 13.5 mi |
| 42266 | Pembroke, KY | 13.9 mi |
| 42254 | La Fayette, KY | 14.2 mi |
| 37079 | Indian Mound, TN | 14.9 mi |
| 42236 | Herndon, KY | 15.2 mi |
Questions about 37042
What is the ZIP+4 code for 37042?
37042 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 37042, you need to look up a specific street address to get them.
What city is 37042?
37042 is assigned to Clarksville, Tennessee, in Montgomery 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.