ZIP Code 78851 — Dryden, TX
78851 is a standard (street delivery) ZIP code serving Dryden, Texas, in Terrell 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 78851 at a glance
| ZIP code | 78851 |
|---|---|
| Primary city | Dryden |
| State | Texas (TX) |
| County | Terrell FIPS 48443 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 44 |
| Coordinates | 30.224410, -101.917330 |
How ZIP+4 works in 78851
The four digits after the hyphen encode a delivery segment inside 78851. 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 78851 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 78851.
| ZIP | City | Distance |
|---|---|---|
| 79848 | Sanderson, TX | 20.9 mi |
| 79781 | Sheffield, TX | 27.8 mi |
| 78871 | Langtry, TX | 28.4 mi |
| 78841 | Del Rio, TX | 37.5 mi |
| 76943 | Ozona, TX | 39.4 mi |
Questions about 78851
What is the ZIP+4 code for 78851?
78851 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 78851, you need to look up a specific street address to get them.
What city is 78851?
78851 is assigned to Dryden, Texas, in Terrell 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.