ZIP code 78680
Where is ZIP code 78680?
Round Rock, Texas
Williamson County · PO Box only ZIP code
ZIP code 78680 belongs to Round Rock, Texas in Williamson County. 78680 is a PO Box only ZIP code: it is used for post office boxes at the Round Rock post office, not for street addresses. It is in the Central Time zone and uses area code 512. The closest ZIP codes are 78682 (Round Rock, 0 mi north), 78683 (Round Rock, 0 mi north) and 78674 (Weir, 1.4 mi northeast).
| ZIP code | 78680 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | Round Rock |
| State | Texas (TX) |
| County | Williamson County |
| Time zone | Central Time · now |
| Area code | 512 |
| Coordinates | 30.6568, -97.6026 map |
| 3-digit prefix | 786 |
The Census Bureau doesn’t publish population figures for po box only ZIP codes because nobody lives at a PO Box or a single organization’s address. For figures about the area, see the nearby standard ZIP codes below.
ZIP codes near 78680
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 78682 | Round Rock, TX | 0 mi N | Unique |
| 78683 | Round Rock, TX | 0 mi N | PO Box only |
| 78674 | Weir, TX | 1.4 mi NE | PO Box only |
| 78626 | Georgetown, TX | 4.4 mi W | Standard |
| 78627 | Georgetown, TX | 4.7 mi W | PO Box only |
| 78673 | Walburg, TX | 5.9 mi N | PO Box only |
| 78628 | Georgetown, TX | 8.9 mi W | Standard |
| 78634 | Hutto, TX | 9.3 mi S | Standard |
| 78633 | Georgetown, TX | 9.9 mi NW | Standard |
| 78664 | Round Rock, TX | 10.6 mi S | Standard |
| 78665 | Round Rock, TX | 10.6 mi S | Standard |
| 76537 | Jarrell, TX | 10.7 mi N | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 78680 or measure the distance to another ZIP code.
How to address mail to 78680
PO BOX 123
ROUND ROCK TX 78680
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (78680-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in Round Rock, TX
All Round Rock ZIP codes with population and income →
Questions
- What city is ZIP code 78680?
- 78680 is a Round Rock, Texas ZIP code.
- What county is 78680 in?
- ZIP code 78680 is in Williamson County, Texas.
- What time zone is ZIP code 78680 in?
- 78680 is in the Central Time zone (America/Chicago).
- What area code is 78680?
- Phone numbers in ZIP code 78680 use area code 512.
- Can I use 78680 for a street address?
- No. 78680 is only for PO Boxes. Street addresses in Round Rock use 78664, 78665, 78681.
- What ZIP codes are near 78680?
- The nearest ZIP codes to 78680 are 78682 (Round Rock, 0 miles), 78683 (Round Rock, 0 miles), 78674 (Weir, 1.4 miles) and 78626 (Georgetown, 4.4 miles).