Average Rent in Round Rock, TX (2026)
Typical asking rent in Round Rock is $1,682. Across the 3 ZIP codes with data it runs from $1,621 to $1,824, so which side of town you buy on matters as much as the city average. Data as of June 2026.
Rent by ZIP code in Round Rock
| ZIP code | County | Typical rent | vs city median |
|---|---|---|---|
| 78681 | Williamson County | $1,824 | +8% |
| 78665 | Williamson County | $1,682 | 0% |
| 78664 | Williamson County | $1,621 | -4% |
How to use these numbers
These are Zillow Observed Rent Index values, a smoothed measure of typical asking rent for single family homes, condos, and apartments in each ZIP code. They describe what units are listed for, not what any specific unit will get. Condition, bedroom count, and the exact block all move the number.
If you are underwriting a purchase, use the ZIP figure rather than the city median, and then verify against live listings for the same bedroom count before you commit. Round Rock sits in the Austin-Round Rock-Georgetown, TX metro area.
Other Texas cities
Would a rental in Round Rock cash flow?
Start the analyzer with the Round Rock median rent of $1,682 and add a real purchase price to see cash flow, cap rate, and cash-on-cash return.