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

501 MAYS ST S, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — 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 $164,657.

Estimated Value Range

WCAD Appraised Value $164,657

Comparable data is not yet available for this property. The Williamson County Appraisal District values it at $164,657.

The Neighborhood

This home is valued 2.2% above the R20QN - Rr East Nom-imp median of $161,063. With 7 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 12.6% over the past year.

R20QN - Rr East Nom-imp

typical
7 Properties
$161,063 Median Value
-12.6% YoY Change
0% Have Pool
0% Have Garage
This Home
$164,657
Median
$161,063

This home is +2.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $2,963 across all districts. With a homestead exemption claimed, that drops to $1,682 — saving $1,281 per year. That's $140 per month a buyer should budget. The assessed value increased 0.0% vs the subdivision average of -12.6%. This above-average increase gives a protest opportunity score of 50 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$1,471
Round RockCity0.3720%$613
Williamson CountyCounty0.3694%$608
Austin Community Collegespecial0.1034%$170
Williamson County FM/RdCounty0.0443%$73
Upper Brushy Creek WCIDWater0.0170%$28
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$2,963
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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