Beta Williamson County, TX only — data and coverage are limited during early access.

COUNTY ROAD 186, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

Property at a Glance

There are not enough comparable properties nearby to estimate a price range. The Williamson County Appraisal District values this home at $1,559,326.

Estimated Value Range

WCAD Appraised Value $1,559,326

Comparable data is not yet available for this property. The Williamson County Appraisal District values it at $1,559,326.

The Neighborhood

This home is valued 251.2% above the R20TR - Round Rock Transitional, Williamson County, East If median of $444,058. With 137 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 200.4% over the past year.

R20TR - Round Rock Transitional, Williamson County, East If

outlier high
137 Properties
$444,058 Median Value
+200.4% YoY Change
0% Have Pool
0% Have Garage
This Home
$1,559,326
Median
$444,058

This home is +251.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $186 across all districts. With a homestead exemption claimed, that drops to $43 — saving $143 per year. That's $4 per month a buyer should budget.

Tax Districts

DistrictTypeRateAnnual Amount
Georgetown ISDSchool1.0506%$124
Williamson CountyCounty0.3694%$44
Williamson County ESD #8 - GeorgetownESD0.0912%$11
Williamson County FM/RdCounty0.0443%$5
Upper Brushy Creek WCIDWater0.0170%$2
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5726%$186
50 / 100

Moderate opportunity to protest.

Data sourced from Williamson County Appraisal District (WCAD), Texas Education Agency (TEA), and Federal Reserve Economic Data (FRED). Assessment values reflect the appraisal district's estimate, not market sale prices. Report generated 4/18/2026.

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