HousingHandbookReference data

U.S. ZIP Code · TX78633

Williamson County · Austin-Round Rock-San Marcos, TX

Typical home value

$445,232[1]

Zillow Home Value Index, as of April 2026

Appreciation

1-year
-4.0%
5-year / yr
+1.7%
10-year / yr
+2.9%

Relative price

vs U.S.
+56.7%
vs metro
+1.3%
vs state
+70.1%
ZIP 78633 location in TX
Location of ZIP 78633 in TX

Price history

Zillow Home Value Index — monthly, smoothed and seasonally adjusted.

The typical home in 78633 is worth $445,232 — 1.3% above the Austin-Round Rock-San Marcos, TX median. Over the past year, values have fallen 4.0%. Homes here rent for a typical $1,582 a month — a 4.3% gross rental yield. The effective property tax rate is 1.2%.

#Rent & investment

Typical asking rent, and the returns it implies at the current home value.

Monthly rent
$1,582[2]
Gross yield
4.3%[2]
Cap rate
2.6%[2]

#Property tax

Effective rate — total real estate taxes paid relative to total home value.

Effective tax rate
1.2%[3]
Typical annual tax
$5,453[3]

#Climate risk

FEMA National Risk Index ratings for Williamson County. "Not Applicable" means the hazard does not threaten the county.

Overall risk
Relatively Moderate[4]
Riverine flood
Relatively Moderate
Coastal flood
Not Applicable
Wildfire
Relatively Low
Drought
Relatively Moderate
Heat wave
Relatively Moderate
Hurricane
Relatively Low
Tornado
Relatively High
Earthquake
Very Low
Winter weather
Very High

#Who lives here

Population
29,309[3]
Median household income
$100,936[3]

#Migration

Household moves in and out of Williamson County over a year, from IRS tax-return data.

Net migration
+7,478[5]
Moved in
32,697
Moved out
25,219

Schools

Open public schools in this ZIP, from the NCES Common Core of Data.

Public schools
2
Elementary
2
Middle
0
High
0
  • JO ANN FORD EL

    Elementary · Grades PK–5 · GEORGETOWN ISD

    569 students

  • VILLAGE EL

    Elementary · Grades PK–5 · GEORGETOWN ISD

    444 students

Run the numbers

Interactive calculators pre-filled with this ZIP's typical home value, rent, and property-tax rate. Edit any field to recompute.

Gross yield4.3%
Net yield (after ~40% expenses)2.6%
Annual rent$18,981

Gross and net yield are estimates based on the inputs and the selected expense ratio. Actual income and expenses will vary by property and market. Not investment advice.

Monthly payment$2,251
Loan principal$356,186
Down payment$89,046
Total interest paid$454,295

Estimated monthly payments include principal and interest only. Actual costs will include property tax, insurance, possibly PMI, and HOA fees not modeled here. Loan terms shown are estimates; consult a licensed lender for current rates and qualification.

Own : rent ratio1.94
Monthly cost to own$3,075
Monthly rent$1,582

Renting is meaningfully cheaper month-to-month.

This calculator projects multi-year scenarios based on assumptions about appreciation, rent growth, and investment returns — none of which are guaranteed. Actual outcomes depend on variables this tool cannot know. Not financial or real estate advice.

#Metro ranking

Where this ZIP sits among others in its metro area.

Appreciation
54th percentile[1]
Rental yield
39th percentile[2]
Property tax
35th percentile[3]

Frequently asked

How much is a home worth in ZIP code 78633?
The typical home in 78633 is worth $445,232, based on the Zillow Home Value Index.
Are home values rising in 78633?
Home values in 78633 are down 4.0% over the past year, and up 1.7% a year over five years.
What is the typical rent in 78633?
A typical home in 78633 rents for about $1,582 a month, a gross rental yield of 4.3%.
What is the property tax rate in 78633?
The effective property tax rate in 78633 is 1.2% — roughly $5,453 a year on a typical home.
Who lives in 78633?
ZIP code 78633 has a population of 29,309 and a median household income of $100,936.

#Comparable ZIPs

Same metro, nearest typical home value. Each card shows the comparable ZIP's headline numbers so you can scan at a glance.

  • Leander, TX

    Typical home
    $439,681
    Gross yield
    5.1%
  • Austin, TX

    Typical home
    $436,578
    Gross yield
    3.7%
  • Circle D-KC Estates CDP, TX

    Typical home
    $458,165
    Gross yield
  • Austin, TX

    Typical home
    $458,988
    Gross yield
    3.8%
  • Cedar Creek CDP, TX

    Typical home
    $429,752
    Gross yield
  • Austin, TX

    Typical home
    $426,876
    Gross yield
    4.1%

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