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Port Arthur, Jefferson County, Texas Property Taxes

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Property Taxes in Port Arthur, Texas

  • Median Port Arthur, Texas effective property tax rate: 1.80%, significantly higher than the national median of 1.02%, and higher than the Texas state median of 1.48%.

  • Median Port Arthur, Texas home value: $93,429

  • Median annual Port Arthur, Texas tax bill: $1,474, lower than the national median property tax bill of $2,400.

How are property taxes in Jefferson calculated?

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

Last Updated April 13, 2026

Port Arthur, Jefferson County, Texas Property Tax Bill Calculator

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

1.8%

Estimate Property Tax Bill

$1,682

$1,561

SAVE WITH OWNWELL

$774

Average Annual Tax Savings

How Does the Port Arthur Property Tax Calculator Work?

Use this Port Arthur property tax calculator to estimate your annual tax bill. Enter your property's assessed value and our calculator applies Port Arthur's median effective tax rate of 1.80% — based on actual property records in Jefferson 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 Arthur'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 Arthur: rates range from $1388.00 in 77640 to $1540.00 in 77642, primarily due to differences in school district levies and local assessment districts. Port Arthur's median property tax bill of $1474 is higher than the Texas median tax bill of $1474?

If your estimate is higher than expected, Ownwell can appeal your Port Arthur assessment — you only pay if we save you money.

About Port Arthur Property Taxes

About Property Taxes in Port Arthur, Jefferson, Texas

Port Arthur’s median effective property tax rate of 1.80% is higher than the Texas state median of 1.48% and higher than the national median of 1.02%. This rate reflects the Jefferson County base levy combined with local school district levies and Municipal Utility Districts that vary by subdivision throughout the city.

Property tax rates are not uniform across Port Arthur. Homeowners in the 77640 ZIP code carry a median effective rate of 1.99%, while those in 77642 pay 1.64%. This spread — 0.35 percentage points across the same city — reflects how school district boundaries and local assessment districts are drawn across Jefferson County. Understanding which part of Port Arthur you live in can make a meaningful difference to your annual tax bill.

Port Arthur 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 Arthur, Jefferson 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 Arthur'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 Arthur, Jefferson County, Texas

Source: Ownwell

0.72%

1.56%

2.40%

Our median effective property tax rate (tax bill Ă· 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 Arthur Tax Rate

1.80%

Our median effective property tax rate (tax bill Ă· 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 Jefferson County Tax Rate

1.67%

Median Effective Texas Tax Rate

1.48%

Median Effective United States Tax Rate

1.02%

Property Tax Rates Across Port Arthur, Jefferson County, Texas

Zip10th Percentile25th PercentileMedian Tax Rate75th Percentile90th Percentile
776400.20%0.73%1.99%2.92%2.92%
776420.35%0.80%1.64%2.92%2.92%

Source: Ownwell

Property Tax Assessment Values Across Port Arthur, Jefferson County, Texas

When examining property taxes in Port Arthur, 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 Jefferson 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:

In Jefferson County, assessment notices are sent in April 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. For Port Arthur, the median home price is $93,429, with tax bills ranging significantly across the county. ZIP code 77642 has the highest median home price at $94,164.

Property Tax Assessment Values Across Port Arthur, Jefferson County, Texas

Source: Ownwell

$69,200

$137,390

$205,580

Median Port Arthur Market Value

$93,429

Median Jefferson County Market Value

$129,897

Median Texas Market Value

$258,851

Median United States Market Value

$235,294

Property Tax Assessment Values Across Port Arthur, Jefferson County, Texas

Zip10th Percentile25th PercentileMedian Home Price75th Percentile90th Percentile
77640$38,866$58,637$92,796$136,991$217,469
77642$48,894$66,269$94,164$145,600$219,932

Source: Ownwell

Property Tax Bills Across Port Arthur, Jefferson County, Texas

Property tax bills in Port Arthur are based on the assessed value of a home and the local tax rates set by taxing authorities in Jefferson County. When a property’s assessed value rises, the tax bill can increase, even if the homeowner’s income does not. For a home with a median value of $93,429, the bill can vary widely depending on the exact location and exemptions applied.

Homeowners in Port Arthur often see bills that range from $612 at the 25th percentile to $2,563 at the 75th percentile, with the 90th percentile reaching $4,090. The highest median tax bill is $1,540 in ZIP code 77642, while the lowest median tax bill is $1,388 in ZIP code 77640. Compared with the national median property tax rate of 1.02% and national median property tax bill of $2,400, these differences show how much local assessments can affect what homeowners pay.

Ownwell helps homeowners lower their property tax bills by reviewing assessments, identifying savings opportunities, and filing appeals to challenge unfairly high valuations.

Property Tax Bills Across Port Arthur, Jefferson County, Texas

Source: Ownwell

$453

$1,950

$3,446

Median Port Arthur Tax Bill

$1,474

Median Jefferson County Tax Bill

$1,806

Median Texas Tax Bill

$3,441

Median United States Tax Bill

$2,400

Property Tax Bills Across Port Arthur, Jefferson County, Texas

Zip10th Percentile25th PercentileMedian Tax Bill75th Percentile90th Percentile
77640$159$535$1,388$2,492$4,011
77642$314$659$1,540$2,614$4,128

Source: Ownwell

Don't miss the deadline to protest!

Frequently Asked Property Tax Questions in Port Arthur, Texas

How are property taxes calculated in Port Arthur, Texas?
Property taxes in Port Arthur, 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 Arthur, Texas?
To appeal your property taxes in Port Arthur, 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 Arthur, Texas?
Common property tax exemptions in Port Arthur, 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 Arthur, Texas?
Property tax deadlines in Port Arthur, 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 Arthur, Texas?
Ownwell provides professional property tax appeal services in Port Arthur, 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.