Hidalgo & Diego area, Round Rock 78665

CAD Neighborhood R491507D

Property tax protest data for the Hidalgo & Diego area, Round Rock 78665 (Neighborhood R491507D) in Williamson County. 694 homes, $203/sqft median.

Moderate protest signal
54% success rate · Reductions above average
What protesters saved
$12,573
County-wide avg. per successful protest (2024)
Protest success rate
54%
Based on 85,033 county-wide protests (2024)
Homes analyzed
694
Median assessment
$203/sqft
Avg: $200/sqft

Source: WCAD public records, 2024 protest season

What this means for your property

694 homes in this area were assessed at a median $203/sqft. With a 54% protest success rate, most homeowners who challenged their assessment received a reduction. If your home is assessed higher than comparable properties, you likely have grounds to protest. An evidence packet shows exactly how your assessment compares — with the specific comps and data you'd present at a hearing.

What's in the evidence packet?

5 comparable properties matched to your home, an assessment gap analysis showing where your value exceeds comps, a filing checklist for WCAD, and a hearing script you can read at your informal hearing.

How does the protest process work?

You file a protest with WCAD (online via WCAD Property Owner Portal), attend an informal hearing where you present your evidence, and most cases settle right there. The evidence packet gives you everything you need for that hearing.

What's the deadline?

The protest deadline for Williamson County is May 15. You must file before this date to protest your 2026 assessment.

Check your property

See how your home compares to 694 others in Hidalgo & Diego area, Round Rock 78665

$49 flat fee · No recurring fees — you keep 100% · 7-day money-back guarantee

📅 Deadline: May 15, 2026 (41 days left) Full refund if unused 🔒 Secure checkout 🛡 No risk — filing can’t raise your taxes

What's in your evidence packet

5 comparable properties matched to your home
Assessment gap analysis with dollar amounts
Williamson County filing checklist
Hearing script you can read word-for-word
Comparable sales grid (PDF)
Step-by-step WCAD Property Owner Portal walkthrough
In Williamson County, 85,033 property owners protested last year. 54% received a reduction.

Compare similar neighborhoods in Williamson County

Neighborhood Homes Median $/Sq Ft Win Rate
Brandy & Addie area, Georgetown 78628 207 $203 same
Meadowside & Willowbrook area, Hutto 78634 185 $203 same
Settlers Park & Aaron Ross area, Round Rock 78665 221 $203 same
Margarita & Los Alamos area, Round Rock 78665 431 $202 same
Saturnia & Panzano area, Georgetown 78628 1,068 $202 same

Neighborhoods with the closest median $/sq ft to Hidalgo & Diego area, Round Rock 78665.

Top flagged properties in Hidalgo & Diego area, Round Rock 78665

Address % Above $/Sqft Est. Savings
2921 DIEGO DR, ROUND ROCK, TX 78665 28% $259 $2,174
3160 HIDALGO LOOP, ROUND ROCK, TX 78665 26% $255 $2,433
3340 CATALINA CV, ROUND ROCK, TX 78665 24% $252 $2,675
3348 CATALINA CV, ROUND ROCK, TX 78665 19% $241 $2,182
3121 HIDALGO LOOP, ROUND ROCK, TX 78665 19% $241 $1,670

Properties assessed highest above the neighborhood median.