Port Mansfield, Willacy County, Texas Property Taxes

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Property Taxes in Port Mansfield, Texas

Median Port Mansfield, Texas effective property tax rate: 2.07%, significantly higher than the national median of 1.02%, and higher than the Texas state median of 1.48%.
Median Port Mansfield, Texas home value: $107,965
Median annual Port Mansfield, Texas tax bill: $2,109, $291 lower than the national median property tax bill of $2,400.

How are property taxes in Willacy calculated?

Property taxes in Port Mansfield, Texas 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 Port Mansfield's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Port Mansfield, knowing local tax details benefits homeowners and investors.

Last Updated April 13, 2026

Port Mansfield, Willacy County, Texas Property Tax Bill Calculator

Property Assessed Value

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

2.07%

Estimate Property Tax Bill

$2,235

$2,074

How Does the Port Mansfield Property Tax Calculator Work?

Use this Port Mansfield property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Port Mansfield's median effective tax rate of 2.07% — based on actual property records in Willacy County — to generate your estimate.

Enter your property's estimated assessed value — the figure the local appraisal district uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Port Mansfield's median effective rate across all local levies, providing a more accurate estimate than applying a single county millage rate.

Your bill may vary by ZIP code within Port Mansfield: rates range from 2.07% in 78598 to 2.07% in 78598, primarily due to differences in school district levies and local assessment districts.

For a more precise estimate, scroll down to explore ZIP code-level tax rate trends across Port Mansfield.

About Port Mansfield Property Taxes

About Property Taxes in Port Mansfield, Willacy, Texas

Port Mansfield's median effective property tax rate of 2.07% is higher than the Texas state median of 1.48% and higher than the national median of 1.02%. This rate reflects the Willacy County base levy combined with local school district levies and Municipal Utility Districts (MUDs) that vary by subdivision throughout the city.

Property tax rates are not uniform across Port Mansfield. Homeowners in the 78598 ZIP code carry a median effective rate of 2.07%, while those in 78598 pay 2.07%. This spread — 0 percentage points across the same city — reflects how school district boundaries and local assessment districts are drawn across Willacy County. Understanding which part of Port Mansfield you live in can make a meaningful difference to your annual tax bill.

Port Mansfield homeowners who believe their assessed value is too high can file a formal appeal with the local Appraisal District before the May 15, 2026 deadline each year.

If your estimated bill above seems higher than expected, Ownwell can review your assessment and protest on your behalf. You only pay if we save you money.

Property Tax Rates Across Port Mansfield, Willacy County, Texas

As noted earlier, local government entities set tax rates, which can vary widely within a state.

Why? Because annually, each county estimates its required budget to provide services and divides that by the total value of all taxable property within its jurisdiction. This calculation results in the property tax rate.

While there are votes and laws involved in setting tax rates and budgets, in a nutshell, this is the annual process.

Below, you can compare Port Mansfield's effective property tax rate to other cities in Texas and the median property tax rates in Texas and the U.S.

Property Tax Rates Across Port Mansfield, Willacy County, Texas

Source: Ownwell

1.65%

2.22%

2.80%

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 Port Mansfield Tax Rate

2.07%

Median Effective Willacy County Tax Rate

2.16%

Median Effective Texas Tax Rate

1.48%

Median Effective United States Tax Rate

1.02%

Property Tax Rates Across Port Mansfield, Willacy County, Texas

Zip	10th Percentile	25th Percentile	Median Tax Rate	75th Percentile	90th Percentile
78598	1.70%	1.98%	2.07%	2.14%	2.14%

Source: Ownwell

Property Tax Assessment Values Across Port Mansfield, Willacy County, Texas

When examining property taxes in Port Mansfield, Texas, 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 Willacy 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.

Assessment notices are sent in April each year in Willacy County, and they typically reach your mailbox by the middle of the month. 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.

For example, the median home price in Port Mansfield is $107,965, with a median tax bill of $2,109. Tax bills range from $1,121 at the 25th percentile to $5,052 at the 90th percentile, showing how property taxes can vary across the county.

Property Tax Assessment Values Across Port Mansfield, Willacy County, Texas

Source: Ownwell

$33,250

$70,608

$107,965

Median Port Mansfield Market Value

$107,965

Median Willacy County Market Value

$56,613

Median Texas Market Value

$258,851

Median United States Market Value

$235,294

Property Tax Assessment Values Across Port Mansfield, Willacy County, Texas

Zip	10th Percentile	25th Percentile	Median Home Price	75th Percentile	90th Percentile
78598	$31,216	$55,726	$107,965	$177,458	$255,098

Source: Ownwell

Property Tax Bills Across Port Mansfield, Willacy County, Texas

Property tax bills in Port Mansfield are based on the assessed value of a home and the local tax rates applied to that value. For a home with a median home price of $107,965, the bill reflects how local taxing authorities value the property and then multiply that assessment by the applicable tax rate.

Several factors can influence the final amount, including the home’s market value, local exemptions, and the taxing entities that serve the area. In Port Mansfield, the median tax bill is $2,109, which is below the national median property tax bill of $2,400. That means many homeowners here may pay less than the typical U.S. homeowner, though bills can still vary widely.

The 25th percentile tax bill is $1,121, while the 75th percentile is $3,601 and the 90th percentile is $5,052. This range shows how property tax bills can affect homeowners differently, depending on the assessed value and local tax structure.

Property Tax Bills Across Port Mansfield, Willacy County, Texas

Source: Ownwell

$869

$1,489

$2,109

Median Port Mansfield Tax Bill

$2,109

Median Willacy County Tax Bill

$1,172

Median Texas Tax Bill

$3,441

Median United States Tax Bill

$2,400

Property Tax Bills Across Port Mansfield, Willacy County, Texas

Zip	10th Percentile	25th Percentile	Median Tax Bill	75th Percentile	90th Percentile
78598	$580	$1,121	$2,109	$3,601	$5,052

Source: Ownwell

Don't miss the deadline to protest!

Dates
Appeal Deadline	June 1

Links
Willacy Appraisal District
Website	esearch.willacycad.org

Frequently Asked Property Tax Questions in Port Mansfield, Texas

How are property taxes calculated in Port Mansfield, Texas?

Property taxes in Port Mansfield, Texas are calculated by multiplying your property's assessed value by the applicable tax rate set by local taxing authorities. The assessed value is determined by the county assessor and may differ from your property's market value depending on local assessment ratios and exemptions.

How do I appeal my property taxes in Port Mansfield, Texas?

To appeal your property taxes in Port Mansfield, Texas, you typically need to file a formal protest or appeal with your local appraisal district or assessor's office by the stated deadline. You'll need evidence such as comparable sales, a recent independent appraisal, or documentation of property condition issues. Ownwell can handle this entire process for you.

What property tax exemptions are available in Port Mansfield, Texas?

Common property tax exemptions in Port Mansfield, Texas include homestead exemptions for primary residences, senior citizen exemptions, veteran exemptions, and disability exemptions. Exemption amounts and eligibility requirements vary by county. Contact your local appraisal district or check Ownwell for details specific to your property.

When are property taxes due in Port Mansfield, Texas?

Property tax deadlines in Port Mansfield, Texas vary by county but typically include an assessment notice period in spring or early summer, followed by an appeal deadline, and a tax payment due date in the fall or winter. Check with your county assessor's office for specific dates in your area.

How can Ownwell help reduce my property taxes in Port Mansfield, Texas?

Ownwell provides professional property tax appeal services in Port Mansfield, Texas. Our team analyzes your assessment, gathers evidence, files all paperwork, and represents you at hearings — all with no upfront cost. You only pay a percentage of your savings if we successfully lower your tax bill.