Katy, Waller County, Texas Property Taxes
Median Katy, TX effective property tax rate: 2.54%, significantly higher than the national median of 1.02%, but lower than the Texas state median of 1.67%.
Median Katy, TX home value: $468,010
Median annual Katy, TX tax bill: $12,198, $9,798 higher than the national median property tax bill of $2,400.
How are property taxes in Waller County calculated?
Property taxes in Katy, 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 Katy’s property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Katy, knowing local tax details benefits homeowners and investors.
Last Updated March 1, 2025
Katy, Waller County, Texas Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
2.54%
Estimate Property Tax Bill
$11,887
$11,031
$1,102
Average Tax Savings
Property Tax Rates Across Katy, Waller County, Texas
Local government entities are responsible for setting tax rates, leading to significant variations within Texas. This variation occurs because each county estimates its budgetary needs to provide essential services and divides this amount by the total value of all taxable property within its jurisdiction. This process results in the property tax rate. While the setting of tax rates and budgets involves votes and legislation, this is the fundamental annual procedure.
In Katy, located in Waller County, the effective property tax rate is notably higher than both the state and national medians. With a rate that surpasses the national median of 1.02%, homeowners in Katy face a substantial property tax burden. The highest median tax rate in Katy is found in the 77494 ZIP code, while the lowest is in the 77493 ZIP code. This disparity within the city itself highlights the importance of understanding local tax rates when considering property ownership. By comparing Katy's effective property tax rate with other cities in Texas and the national median, potential homeowners can make informed decisions about property investments.
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 Katy Tax Rate
2.54%
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 Waller County Tax Rate
1.72%
Median Effective Texas Tax Rate
1.67%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Katy, Waller County, Texas
Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
77423 | N/A | N/A | N/A | N/A | N/A |
77449 | N/A | N/A | N/A | N/A | N/A |
77493 | 1.69% | 1.96% | 2.54% | 3.01% | 3.29% |
77494 | 2.54% | 2.85% | 3.02% | 3.04% | 3.04% |
Source: Ownwell
$1,102
Average Katy Tax Savings
Save on your property taxes & more with Ownwell
Property Tax Assessment Values Across Katy, Waller County, Texas
When examining property taxes in Katy, 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 Waller 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 Waller County, assessment notices are sent in the spring each year. They’ll typically reach your mailbox by the middle of May. 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 Katy.
For example, the median home price in Katy is $468,010, with tax bills ranging significantly across the county. Zip code 77494 has the highest median home price at $578,210.
Property Tax Assessment Values Across Katy, Waller County, Texas
Source: Ownwell

$171,290
$374,750
$578,210
Median Katy Market Value
$468,010
Median Waller County Market Value
$273,670
Median Texas Market Value
$247,950
Median United States Market Value
$235,294
Property Tax Assessment Values Across Katy, Waller County, Texas
Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
77423 | N/A | N/A | N/A | N/A | N/A |
77449 | N/A | N/A | N/A | N/A | N/A |
77493 | $262,630 | $347,072 | $467,880 | $600,125 | $767,745 |
77494 | $314,920 | $533,905 | $578,210 | $631,020 | $990,930 |
Source: Ownwell
$1,102
Average Katy Tax Savings
Save on your property taxes & more with Ownwell
Property Tax Bills Across Katy, Waller County, Texas
Median Katy Tax Bill
$12,198
Median Waller County Tax Bill
$4,531
Median Texas Tax Bill
$3,971
Median United States Tax Bill
$2,400
Property Tax Bills Across Katy, Waller County, Texas
Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
77423 | N/A | N/A | N/A | N/A | N/A |
77449 | N/A | N/A | N/A | N/A | N/A |
77493 | $6,006 | $7,808 | $12,173 | $15,243 | $19,568 |
77494 | $8,570 | $15,911 | $16,899 | $19,200 | $24,772 |
Source: Ownwell
$1,102
Average Katy 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 | |
---|---|
Waller Appraisal District | |
Website | esearch.waller-cad.org |
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