Round Rock, Williamson County, Texas Property Taxes
Median Round Rock, TX effective property tax rate: 1.61%, significantly higher than the national median of 1.02%, but lower than the Texas state median of 1.67%.
Median Round Rock, TX home value: $421,134
Median annual Round Rock, TX tax bill: $6,729, $4,329 higher than the national median property tax bill of $2,400.
How are property taxes in Williamson County calculated?
Property taxes in Round Rock, TX are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.
Understanding Round Rock’s property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Round Rock, knowing local tax details benefits homeowners and investors.
Last Updated March 1, 2025
Round Rock, Williamson County, Texas Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
1.61%
Estimate Property Tax Bill
$6,780
$6,292
$1,102
Average Tax Savings
Property Tax Rates Across Round Rock, Williamson County, Texas
Local government entities are responsible for setting tax rates, which can vary significantly within a state. This variation occurs because each county annually estimates the budget required to provide essential services and divides it by the total value of all taxable property within its jurisdiction. This calculation determines the property tax rate. Although votes and laws play a role in establishing these rates and budgets, this is essentially the annual process.
Round Rock, located in Williamson County, TX, has an effective property tax rate that can be compared to other cities within the state and to the median property tax rates of Texas and the U.S. With Texas having a median property tax rate of 1.61%, Round Rock's rate falls within a similar range. However, it is important to note that this is higher than the national median property tax rate of 1.02%. This comparison highlights the variability of property tax rates within the state and nationwide, showcasing the importance of understanding local tax obligations.
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Round Rock Tax Rate
1.61%
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Williamson County Tax Rate
1.68%
Median Effective Texas Tax Rate
1.67%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Round Rock, Williamson County, Texas
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 78664 | 1.23% | 1.41% | 1.51% | 1.77% | 1.77% |
| 78665 | 1.40% | 1.51% | 1.67% | 1.80% | 2.03% |
| 78681 | 1.37% | 1.50% | 1.61% | 1.77% | 1.87% |
Source: Ownwell
$1,102
Average Round Rock Tax Savings
Save on your property taxes & more with Ownwell
Property Tax Assessment Values Across Round Rock, Williamson County, Texas
When examining property taxes in Round Rock, TX, understanding the distinction between "market value" and "assessed value" is crucial. The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. The Williamson County Appraisal District estimates the market value for tax purposes. The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.
In Williamson County, assessment notices are sent in the spring each year. They’ll typically reach your mailbox by the middle of April. Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. By providing insights into how assessed and market values are determined, this section helps property owners navigate their tax responsibilities and understand the valuation processes affecting their property taxes in Round Rock. For example, the median home price in Round Rock is $421,134, with tax bills ranging significantly across the county. Zip code 78681 has the highest median home price at $486,793.
Property Tax Assessment Values Across Round Rock, Williamson County, Texas
Source: Ownwell
$53,849
$363,746
$673,643
Median Round Rock Market Value
$421,134
Median Williamson County Market Value
$409,799
Median Texas Market Value
$247,950
Median United States Market Value
$235,294
Property Tax Assessment Values Across Round Rock, Williamson County, Texas
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 78664 | $279,565 | $304,623 | $341,705 | $426,116 | $556,458 |
| 78665 | $333,127 | $366,248 | $420,760 | $512,112 | $632,218 |
| 78681 | $313,708 | $397,714 | $486,793 | $606,602 | $758,769 |
Source: Ownwell
$1,102
Average Round Rock Tax Savings
Save on your property taxes & more with Ownwell
Property Tax Bills Across Round Rock, Williamson County, Texas
In Round Rock, located in Williamson County, Texas, property tax bills are determined by applying the local tax rate to the assessed value of a property. The assessed value is typically based on the market value of the home, which in this area, has a median price of $421,134. With property tax rates in Texas being higher than the national median of 1.02%, homeowners in Round Rock often face substantial tax bills. For instance, the median tax bill in the area can range from $5,332 in certain zip codes to as high as $7,616 in others. This can significantly affect homeowners' finances, especially those with tax bills reaching up to $10,863 for properties in the 90th percentile.
Ownwell offers a solution by providing property tax appeal and exemption services. By analyzing your property's assessed value, Ownwell can identify potential savings and guide you through the appeal process, potentially lowering your tax bill and easing the financial burden on homeowners in Round Rock.
Median Round Rock Tax Bill
$6,729
Median Williamson County Tax Bill
$6,856
Median Texas Tax Bill
$3,971
Median United States Tax Bill
$2,400
Property Tax Bills Across Round Rock, Williamson County, Texas
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 78664 | $3,662 | $4,419 | $5,332 | $6,489 | $8,381 |
| 78665 | $4,810 | $5,745 | $7,179 | $8,862 | $10,541 |
| 78681 | $4,813 | $6,039 | $7,616 | $9,790 | $12,008 |
Source: Ownwell
$1,102
Average Round Rock Tax Savings
Save on your property taxes & more with Ownwell
Don't miss the deadline to protest!
Dates | |
|---|---|
| Appeal Deadline | May 15 |
| Tax Bill | |
| Issued | October 1 |
| Due Date #1 | January 31 |
Links | |
|---|---|
| Williamson Appraisal District | |
| Phone | (512) 930-3787 |
| Website | search.wcad.org |
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