Zip code 78680: Round Rock, Texas
This zip has no delivery boundary. The map shows its post office location and nearby zip codes.
About 78680
78680 is a non-residential zip code for Round Rock, Texas (Williamson County). It has no delivery area of its own, so the Census Bureau doesn't publish population or housing figures for it. Codes like this are usually assigned to post office boxes, or to a single organization such as a university, hospital, government agency or large company that gets enough mail to need its own zip code.
For a picture of the people who live around 78680, see the residential zip codes in the nearby list below.
Geography
- City (USPS)
- Round Rock
- State
- Texas
- County
- Williamson County
- Center point
- 30.6568° N, 97.6026° W
- Time zone
- Central Time (UTC-6, UTC-5 in summer)
- Zip type
- PO box or unique zip
Zip codes near 78680
| Zip | City | Distance | IncomeMedian income |
|---|---|---|---|
| 78682 | Round Rock, TX · PO box | 0 mi | — |
| 78683 | Round Rock, TX · PO box | 0 mi | — |
| 78626 | Georgetown, TX | 0.9 mi | $100,431 |
| 78674 | Weir, TX | 1 mi | — |
| 78627 | Georgetown, TX · PO box | 4.7 mi | — |
| 78673 | Walburg, TX · PO box | 5.9 mi | — |
| 78634 | Hutto, TX | 7.5 mi | $114,426 |
| 78665 | Round Rock, TX | 7.7 mi | $122,680 |
| 78681 | Round Rock, TX | 10 mi | $137,819 |
| 78628 | Georgetown, TX | 11 mi | $125,635 |
| 78633 | Georgetown, TX | 11 mi | $100,936 |
| 78664 | Round Rock, TX | 11 mi | $87,417 |
Questions about 78680
What city is zip code 78680?
78680 is assigned to Round Rock, Texas. The city name is the one the Postal Service prefers for mail addressed to this zip code.
What county is 78680 in?
78680 is in Williamson County, Texas.
What time zone is 78680 in?
78680 is in Central Time.
What zip codes are near 78680?
The closest zip codes to 78680 are 78682, 78683, 78626, 78674, 78627.
Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 78680, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.