Rental numbers for Williamson County, TX
The typical home here runs -$1,848 a month at 7.78% with 25% down. 0 of 14 ZIP codes with full Zillow data in this county are cash-flow positive; the median gross yield is 5.3%.
- Gross yield
- 5.0%
- typical home, Zillow
- Median ZIP yield
- 5.3%
- 14 ZIPs with full data
- Cash flow
- -$1,848/mo
- at 7.78%, 25% down
- Typical price
- $397,000
- Zillow ZHVI, Aug 2026
- Typical rent
- $1,648/mo
- Zillow ZORI, Aug 2026
ZIP codes in Williamson County
18 with published figures
| 76574Taylor | $281,000 | $2,002 | 8.6% | 3.8% | -$625 | -1.5% |
| 76537Jarrell | $253,000 | $1,745 | 8.3% | 3.0% | -$732 | -2.0% |
| 76530Granger | $315,000 | $1,760* | 6.7% | 2.6% | -$1,027 | n/a |
| 78634Hutto | $330,000 | $1,758 | 6.4% | 1.7% | -$1,301 | +1.6% |
| 78664Round Rock | $330,000 | $1,688 | 6.1% | 1.8% | -$1,295 | +2.2% |
| 76578Thrall | $373,000 | $1,760* | 5.7% | 2.3% | -$1,294 | n/a |
| 78626Georgetown | $345,000 | $1,618 | 5.6% | 1.4% | -$1,460 | +1.6% |
| 78642Liberty Hill | $489,000 | $2,263 | 5.5% | 1.4% | -$2,061 | -0.3% |
| 78641Leander | $427,000 | $1,882 | 5.3% | 1.1% | -$1,917 | +1.7% |
| 78665Round Rock | $391,000 | $1,718 | 5.3% | 1.1% | -$1,752 | +1.9% |
| 78633Georgetown | $436,000 | $1,721 | 4.7% | 0.9% | -$2,004 | +1.6% |
| 78681Round Rock | $477,000 | $1,777 | 4.5% | 0.6% | -$2,335 | -0.5% |
| 78628Georgetown | $470,000 | $1,686 | 4.3% | 0.3% | -$2,418 | +2.4% |
| 78613Cedar Park | $456,000 | $1,605 | 4.2% | 0.2% | -$2,382 | +2.4% |
| 76527Florence | $543,000 | $1,760* | 3.9% | 0.8% | -$2,589 | n/a |
| 78615Coupland | $545,000 | $1,760* | 3.9% | 0.8% | -$2,553 | n/a |
| 78729Austin | $423,000 | $1,298 | 3.7% | -0.1% | -$2,306 | -1.8% |
| 78717Austin | $552,000 | $1,662 | 3.6% | 0.0% | -$2,974 | -0.2% |
* HUD Fair Market Rent, 2 bedroom, where Zillow publishes no rent index. Conservative.
Trends
Five years to August 2026
- Price, 12 months
- -5.3%
- Rent, 12 months
- +0.9%
- Rent minus price growth
- +6.1 pts
- Property tax
- 1.61%
- effective rate, ACS 2024
Show the numbers
| Month | Typical value | Rent |
|---|---|---|
| Aug 2021 | $449,627 | $1,693 |
| Aug 2022 | $529,442 | $1,843 |
| Aug 2023 | $458,840 | $1,776 |
| Aug 2024 | $439,470 | $1,716 |
| Aug 2025 | $418,870 | $1,634 |
| Aug 2026 | $396,843 | $1,648 |
HUD Fair Market Rent
FY2027, Austin-Round Rock-San Marcos, TX MSA
| Bedrooms | Studio | 1 bed | 2 bed | 3 bed | 4 bed |
|---|---|---|---|---|---|
| Fair Market Rent | $1,447 | $1,530 | $1,817 | $2,292 | $2,689 |
The 40th percentile gross rent for a standard unit, set by HUD each October and used for Section 8 payment standards. It runs below market rent; Zillow's index is shown above where it exists.
Supply
- Permits per 1,000 households
- 16.9
- 4,277 units, last 12 months
- National percentile
- 86th
- among US counties
Tools
Test a listing in Williamson County against today's rate.
Open the calculatorPart of the Austin, TX metro.
Questions
- Is Williamson County good for rental property?
- The typical home here runs -$1,848 a month at 7.78% with 25% down. 0 of 14 ZIP codes with full Zillow data in this county are cash-flow positive; the median gross yield is 5.3%. The figures use a typical home, 7.78% with 25% down and default costs shown on each ZIP page. They describe the market, not any one property.
- What is the property tax rate in Williamson County?
- About 1.61% of value, from Census ACS median taxes paid over median home value. On a $397,000 home that is about $6,397 a year.
- What is Fair Market Rent in Williamson County?
- HUD's FY2027 Fair Market Rent here is $1,530 for a 1-bedroom, $1,817 for a 2-bedroom and $2,292 for a 3-bedroom. Typical cash flow at today's rate is -$1,848 a month.
Sources and method
- Zillow Home Value Index (ZHVI), mid tier, smoothed and seasonally adjusted
Zillow Research. Read: 2026-08.
Typical home value by ZIP, county, metro and state, and the price trend.
- Zillow Observed Rent Index (ZORI), all homes plus multifamily, smoothed
Zillow Research. Read: 2026-08.
Typical market rent by ZIP, county and metro, and the rent trend (tier A pages).
- HUD Small Area Fair Market Rents, FY2026
US Department of Housing and Urban Development. Read: FY2026.
Rent by bedroom count for every ZIP. The rent used on tier B pages, and a reference on all pages. It is the 40th percentile gross rent, so it runs below market.
- HUD Fair Market Rents by county, FY2027
US Department of Housing and Urban Development. Read: FY2027.
County rent by bedroom count on county pages.
- American Community Survey 5-year estimates, 2020 to 2024 (B25103 median real estate taxes paid, B25077 median home value, B11001 households)
US Census Bureau. Read: 2020 to 2024.
Effective property tax rate (median taxes paid divided by median value) by ZIP code tabulation area, county and state; households for the permits ratio.
- Freddie Mac Primary Mortgage Market Survey, 30-year fixed (FRED series MORTGAGE30US)
Freddie Mac via the Federal Reserve Bank of St. Louis. Read: 2026-09-24.
The weekly 30-year rate. The site adds a disclosed investor premium to it for the loan payment.
- Building Permits Survey, county monthly files
US Census Bureau. Read: 2025-09 to 2026-08.
New housing units permitted in the last 12 months per 1,000 households, a supply-pressure signal.
Data: Zillow Research (ZHVI, ZORI), HUD, US Census Bureau, Freddie Mac. Every formula is on the methodology page.
Estimates from public data for a typical property. Not investment, tax or legal advice. Your property, financing and costs will differ.