ZIP Code 78662 — Red Rock, TX
78662 is a standard (street delivery) ZIP code serving Red Rock, Texas, in Bastrop 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 78662 at a glance
| ZIP code | 78662 |
|---|---|
| Primary city | Red Rock |
| State | Texas (TX) |
| County | Bastrop FIPS 48021 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 3,015 |
| Coordinates | 29.943160, -97.442310 |
How ZIP+4 works in 78662
The four digits after the hyphen encode a delivery segment inside 78662. 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 78662 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 78662.
| ZIP | City | Distance |
|---|---|---|
| 78616 | Dale, TX | 6.9 mi |
| 78953 | Rosanky, TX | 8.1 mi |
| 78612 | Cedar Creek, TX | 10.7 mi |
| 78602 | Bastrop, TX | 14.4 mi |
| 78644 | Lockhart, TX | 14.7 mi |
| 78957 | Smithville, TX | 16.7 mi |
| 78617 | Del Valle, TX | 17.1 mi |
| 78632 | Harwood, TX | 17.6 mi |
| 78959 | Waelder, TX | 18.8 mi |
| 78719 | Austin, TX | 19.5 mi |
| 78648 | Luling, TX | 20.7 mi |
| 78747 | Austin, TX | 21.8 mi |
Questions about 78662
What is the ZIP+4 code for 78662?
78662 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 78662, you need to look up a specific street address to get them.
What city is 78662?
78662 is assigned to Red Rock, Texas, in Bastrop 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.