ZIP Code 78602 — Bastrop, TX
78602 is a standard (street delivery) ZIP code serving Bastrop, 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 78602 at a glance
| ZIP code | 78602 |
|---|---|
| Primary city | Bastrop |
| State | Texas (TX) |
| County | Bastrop FIPS 48021 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 38,190 |
| Coordinates | 30.127350, -97.328010 |
How ZIP+4 works in 78602
The four digits after the hyphen encode a delivery segment inside 78602. 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 78602 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 78602.
| ZIP | City | Distance |
|---|---|---|
| 78612 | Cedar Creek, TX | 10 mi |
| 78957 | Smithville, TX | 12.1 mi |
| 78659 | Paige, TX | 13.2 mi |
| 78650 | Mcdade, TX | 14 mi |
| 78662 | Red Rock, TX | 14.4 mi |
| 78621 | Elgin, TX | 14.6 mi |
| 78617 | Del Valle, TX | 16.3 mi |
| 78725 | Austin, TX | 18.3 mi |
| 78653 | Manor, TX | 18.5 mi |
| 78953 | Rosanky, TX | 18.8 mi |
| 78616 | Dale, TX | 19.4 mi |
| 78719 | Austin, TX | 20.5 mi |
Questions about 78602
What is the ZIP+4 code for 78602?
78602 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 78602, you need to look up a specific street address to get them.
What city is 78602?
78602 is assigned to Bastrop, 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.