Round Rock, TX — Rental Investment Analysis

🟡MODERATEaverage returns

Data: HUD FMR FY2024 + Zillow ZHVI April 2026 + Freddie Mac rates. Last updated June 2026.

Investment Summary

As of 2026, rental properties in Round Rock, TX yield a 5.0% cap rate. Median home price is $405,217 with 3-bedroom rents at $2,720/month.

Round Rock is a moderate market — workable but not exceptional for cash flow. At $405,217 median home price, Round Rock requires significant capital. A 20% down payment alone is $81,043. With 3-bedroom rents around $2,720/month, the 5.0% cap rate tells the story. Cash flow is deeply negative at -$459/month with standard assumptions. This market requires appreciation to justify the investment.

At 0.68% on the 1% rule, rents are low relative to purchase prices. You'd need a significant discount from asking price to make the numbers work. DSCR of 0.79 is below 1.0, meaning rental income doesn't cover the mortgage. DSCR lenders will likely decline this market at current prices.

Bottom line: Round Rock offers a balance of moderate cash flow and growth potential. Good for investors who want some income while building equity over time.

Data sources: HUD Fair Market Rents (FY2024), Zillow Home Value Index (April 2026), Freddie Mac Primary Mortgage Market Survey.

Cap Rate

5.0%

Below average

Monthly Cash Flow

-$459

After all expenses

Price-to-Rent

12.2

Investor-friendly

DSCR

0.79

Fails

Key Metrics

Median Home Price
$405,217
Average Rent (3BR)
$2,720/mo
Price-to-Rent Ratio
12.2(good)
1% Rule
0.68%(fails — need 1%+)
Cash-on-Cash Return
-5.9%
Vacancy Rate
8.0%

Market Strength

Unemployment Rate
4.3%(0% vs national)
Rent Growth (YoY)
+2.9%(national avg)
Population Growth
+1.5% YoY

Assumptions Used

20% down, 6.52% rate, 30yr, 8% vacancy, 10% maintenance

Customize these numbers →

Property Tax Rate

1.68%

of assessed value (TX avg)

Median Income

$67,321

household (TX avg)

Rent-to-Income

48.5%

Stretched

Section 8 Max Rent

$2,720/mo

3BR voucher payment

TX Investor Climate

Landlord Friendly

9/10

State Income Tax

None

Property Tax

1.68% effective

Population Trend

+1.5% (3yr)

Best Zip Codes in Round Rock for Investors

78664
Cap Rate: 5.0%Cash Flow: -$388/mo$344,736
78665
Cap Rate: 5.0%Cash Flow: -$459/mo$405,217
78681
Cap Rate: 3.8%Cash Flow: -$1,080/mo$491,286

All Zip Codes in Round Rock

ZipCap RateCash FlowHome PriceRent (3BR)DSCR
786645.0%-$388$344,736$2,360/mo0.79
786655.0%-$459$405,217$2,770/mo0.79
786813.8%-$1,080$491,286$2,720/mo0.59