ZIP Code 78377 — Refugio, TX
78377 is a standard (street delivery) ZIP code serving Refugio, Texas, in Refugio 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 78377 at a glance
| ZIP code | 78377 |
|---|---|
| Primary city | Refugio |
| State | Texas (TX) |
| County | Refugio FIPS 48391 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 3,421 |
| Coordinates | 28.341800, -97.180510 |
How ZIP+4 works in 78377
The four digits after the hyphen encode a delivery segment inside 78377. 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 78377 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 78377.
| ZIP | City | Distance |
|---|---|---|
| 78340 | Bayside, TX | 15.1 mi |
| 78393 | Woodsboro, TX | 15.3 mi |
| 78382 | Rockport, TX | 17.2 mi |
| 77990 | Tivoli, TX | 17.8 mi |
| 77950 | Austwell, TX | 18 mi |
| 77973 | Mcfaddin, TX | 19.4 mi |
| 78358 | Fulton, TX | 20.6 mi |
| 77960 | Fannin, TX | 21.8 mi |
| 77963 | Goliad, TX | 25.5 mi |
| 78390 | Taft, TX | 25.8 mi |
| 77951 | Bloomington, TX | 26 mi |
| 78336 | Aransas Pass, TX | 27.5 mi |
Questions about 78377
What is the ZIP+4 code for 78377?
78377 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 78377, you need to look up a specific street address to get them.
What city is 78377?
78377 is assigned to Refugio, Texas, in Refugio 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.