Williamson County property tax protest check
Williamson Central Appraisal District appraised 210,320 single-family homes on its 2026 certified roll. We could compare 204,953 of them with similar homes nearby, and 84,221 of those (41.1%) look high.
This free, independent check uses the appraisal district's own values, not sale prices. Click your home on the map for a report that compares it with 5 similar homes nearby, and see the Playbook if you decide to protest on your own.
Check your Williamson County home on the map →
What Williamson County's 2026 certified roll shows
Added up, these homes are appraised $3.7 billion above the typical value of the similar homes they were compared with.
We could not find 5 similar homes for the other 5,367 homes on the roll (an unusual size or age, or a rural home), so they are not part of the percentage.
Neighborhoods where the most homes look high
- Around Patricia Rd: 57% of 182 homes we could compare look high
- Around Twin Creek Dr: 57% of 99 homes we could compare look high
- Around Skyline Rd: 56% of 218 homes we could compare look high
- Around Susana Dr: 55% of 82 homes we could compare look high
- Around Buffalo Trl: 55% of 71 homes we could compare look high
These counts cover single-family homes only. Every county has some homes above similar homes and some below, so this is not proof the whole county is over-appraised.
Where Williamson County's homes are
No single city has most of the 160,341 homes with a homestead exemption. The largest counts are in Georgetown (40,316), Round Rock (36,557), Leander (22,499) and Cedar Park (15,242).
By ZIP code, the most homestead homes are in 78641 (22,557), 78628 (16,818) and 78613 (15,182). The roll has homes in 32 ZIP codes in all.
How the largest cities compare
| City | Homes we could compare | Share that looks high | Median appraised value |
|---|---|---|---|
| Georgetown | 47,893 | 41.7% | $438,367 |
| Round Rock | 48,219 | 42.0% | $442,382 |
| Leander | 30,085 | 39.1% | $415,299 |
| Cedar Park | 20,055 | 41.9% | $464,654 |
| Austin | 16,146 | 42.8% | $513,285 |
| Hutto | 16,067 | 36.9% | $356,567 |
Each row counts the single-family homes with that city in their address. The county-wide share is 41.1%.
Williamson County questions
How many Williamson County homes look high on the 2026 roll?
84,221 of the 204,953 homes we could compare, or 41.1%. Each is appraised more than 2% above similar homes nearby on Williamson Central Appraisal District's 2026 certified roll.
What is the median appraised value of a Williamson County homestead?
$443,737 on the 2026 certified roll. That is the middle value of the 160,341 single-family homes with a homestead exemption.
When can I protest my Williamson County appraisal?
The 2026 protest season is closed. The next one starts when 2027 preliminary notices go out, usually in April or May. The deadline is generally May 15, or 30 days after your notice was delivered if that is later. Go by the date printed on your own notice. The appraisal district takes protests online at wcad.org/online-protest-filing.
Which Williamson County city has the largest share of homes that look high?
Of the 6 largest cities, Austin is highest: 42.8% of its 16,146 homes we could compare look high. Hutto is lowest at 36.9% of 16,067. The county as a whole is at 41.1%.
Williamson Central Appraisal District
The district's website is wcad.org. You can look up any account at search.wcad.org. To protest, use Williamson Central Appraisal District's protest page. What notice and certified values mean
The numbers on this page come from the appraisal district's 2026 certified roll. We got it through a free open-data feed, and our copy was last updated on July 29, 2026. The map also has the 2025 certified and 2026 preliminary rolls for Williamson County, and the year buttons on the map switch between them.
What happened when Williamson County owners protested
In 2024, the appraisal district received 55,655 protests. 55% of informal reviews ended with a lower value, and so did 54% of formal hearings. Together they took $730 million off appraised values. Paid agents or firms filed about 79% of the protests, and owners can also file on their own for free.
Source: Texas Comptroller Appraisal District Operations Survey (2024), with county-wide figures reported by the appraisal district.
Nearby counties
These counties border Williamson County:
More Austin Metro counties:
See all Texas counties we cover →
The fine print
Not legal advice. This page is an educational check built on public appraisal data. It is not affiliated with the Williamson Central Appraisal District or the State of Texas, and it does not file anything on your behalf — you are responsible for your own filings and deadlines. The regular spring protest window is closed on the 2026 certified roll. See the full Disclaimer & Terms of Use.
Built by an independent citizen developer. Not affiliated with the Williamson Central Appraisal District.