ZIP Code 78931 — Bleiblerville, TX
78931 is a standard (street delivery) ZIP code serving Bleiblerville, Texas, in Austin 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 78931 at a glance
| ZIP code | 78931 |
|---|---|
| Primary city | Bleiblerville |
| State | Texas (TX) |
| County | Austin FIPS 48015 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 185 |
| Coordinates | 30.031170, -96.442910 |
How ZIP+4 works in 78931
The four digits after the hyphen encode a delivery segment inside 78931. 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 78931 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 78931.
| ZIP | City | Distance |
|---|---|---|
| 78944 | Industry, TX | 3.4 mi |
| 78950 | New Ulm, TX | 8.9 mi |
| 77418 | Bellville, TX | 12 mi |
| 77833 | Brenham, TX | 12.4 mi |
| 77426 | Chappell Hill, TX | 13.1 mi |
| 77835 | Burton, TX | 14.4 mi |
| 78940 | Fayetteville, TX | 15.1 mi |
| 78954 | Round Top, TX | 15.3 mi |
| 78932 | Carmine, TX | 18.3 mi |
| 78933 | Cat Spring, TX | 18.9 mi |
| 78938 | Ellinger, TX | 21 mi |
| 78946 | Ledbetter, TX | 22.6 mi |
Questions about 78931
What is the ZIP+4 code for 78931?
78931 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 78931, you need to look up a specific street address to get them.
What city is 78931?
78931 is assigned to Bleiblerville, Texas, in Austin 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.