ZIP Code 79377 — Welch, TX
79377 is a standard (street delivery) ZIP code serving Welch, Texas, in Dawson 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 79377 at a glance
| ZIP code | 79377 |
|---|---|
| Primary city | Welch |
| State | Texas (TX) |
| County | Dawson FIPS 48115 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 230 |
| Coordinates | 32.930900, -102.136530 |
How ZIP+4 works in 79377
The four digits after the hyphen encode a delivery segment inside 79377. 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 79377 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 79377.
| ZIP | City | Distance |
|---|---|---|
| 79342 | Loop, TX | 11.5 mi |
| 79316 | Brownfield, TX | 17.1 mi |
| 79378 | Wellman, TX | 19.1 mi |
| 79351 | Odonnell, TX | 20.3 mi |
| 79331 | Lamesa, TX | 20.4 mi |
| 79373 | Tahoka, TX | 23.5 mi |
| 79359 | Seagraves, TX | 23.8 mi |
| 79345 | Meadow, TX | 30.1 mi |
| 79383 | New Home, TX | 30.2 mi |
| 79381 | Wilson, TX | 34.4 mi |
| 79376 | Tokio, TX | 36.8 mi |
| 79713 | Ackerly, TX | 37.4 mi |
Questions about 79377
What is the ZIP+4 code for 79377?
79377 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 79377, you need to look up a specific street address to get them.
What city is 79377?
79377 is assigned to Welch, Texas, in Dawson 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.