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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

SAVE WITH OWNWELL

$1,102

Average Tax Savings

Ownwell’s Katy Property Tax Bill Calculator empowers homeowners, real estate investors, and potential buyers to estimate their annual property taxes in Katy with just two data points. By entering your property's estimated assessed value, our calculator applies Katy’s median effective tax rate to accurately estimate your property tax bill. Note that your property's assessed value — determined by your county — reflects any exemptions you may have, ensuring a more precise calculation for your property tax obligations. This insightful tool helps you understand potential tax liabilities and highlights how Ownwell can assist in reducing property taxes in Waller County. For those interested in more localized information, please scroll down to explore city-level trends!

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.

Property Tax Rates Across Katy, Waller County, Texas

Source: Ownwell

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1.26%

2.14%

3.02%

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

Zip10th Percentile25th PercentileMedian Tax Rate75th Percentile90th Percentile
774931.69%1.96%2.54%3.01%3.29%
774942.54%2.85%3.02%3.04%3.04%
77423N/AN/AN/AN/AN/A
77449N/AN/AN/AN/AN/A

Source: 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

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$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

Zip10th Percentile25th PercentileMedian Home Price75th Percentile90th Percentile
77493$262,630$347,072$467,880$600,125$767,745
77494$314,920$533,905$578,210$631,020$990,930
77423N/AN/AN/AN/AN/A
77449N/AN/AN/AN/AN/A

Source: Ownwell

Property Tax Bills Across Katy, Waller County, Texas

In Katy, located in Waller County, TX, property tax bills are calculated based on the assessed value of a homeowner's property. The assessed value is influenced by the market value of the home, which in Katy has a median price of $468,010. With a property tax rate that can lead to substantial tax bills, homeowners in Katy face tax bills that vary significantly. For instance, the 25th percentile tax bill is $7,808, while the 75th percentile reaches $15,295, and the 90th percentile climbs to $19,576. Notably, the highest median tax bill in Katy is $16,899 in the 77494 zip code, compared to the lowest median tax bill of $12,173 in the 77493 zip code. These figures are considerably higher than the national median property tax bill of $2,400. Ownwell offers expertise in property tax appeals and exemptions, helping homeowners in Katy potentially reduce their tax burdens. By analyzing property assessments and advocating on behalf of homeowners, Ownwell aims to secure significant savings on property tax bills.

Property Tax Bills Across Katy, Waller County, Texas

Source: Ownwell

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$2,783

$9,841

$16,899

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

Zip10th Percentile25th PercentileMedian Tax Bill75th Percentile90th Percentile
77493$6,006$7,808$12,173$15,243$19,568
77494$8,570$15,911$16,899$19,200$24,772
77423N/AN/AN/AN/AN/A
77449N/AN/AN/AN/AN/A

Source: Ownwell

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