ZIP Code 78071 — Three Rivers, TX
78071 is a standard (street delivery) ZIP code serving Three Rivers, Texas, in Live Oak 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 78071 at a glance
| ZIP code | 78071 |
|---|---|
| Primary city | Three Rivers |
| State | Texas (TX) |
| County | Live Oak FIPS 48297 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 3,576 |
| Coordinates | 28.477560, -98.197330 |
How ZIP+4 works in 78071
The four digits after the hyphen encode a delivery segment inside 78071. 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 78071 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 78071.
| ZIP | City | Distance |
|---|---|---|
| 78075 | Whitsett, TX | 8.8 mi |
| 78007 | Calliham, TX | 12.5 mi |
| 78125 | Mineral, TX | 14.5 mi |
| 78022 | George West, TX | 16.4 mi |
| 78145 | Pawnee, TX | 17 mi |
| 78008 | Campbellton, TX | 17.5 mi |
| 78062 | Peggy, TX | 18.5 mi |
| 78146 | Pettus, TX | 23.4 mi |
| 78142 | Normanna, TX | 23.7 mi |
| 78119 | Kenedy, TX | 24 mi |
| 78012 | Christine, TX | 24.9 mi |
| 78162 | Tuleta, TX | 25.4 mi |
Questions about 78071
What is the ZIP+4 code for 78071?
78071 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 78071, you need to look up a specific street address to get them.
What city is 78071?
78071 is assigned to Three Rivers, Texas, in Live Oak 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.