Hart, Castro County, Texas Property Taxes
Property Taxes in Hart, Texas
Median HART, Texas effective property tax rate: 1.17%, significantly lower than the national median of 1.02%, and lower than the Texas state median of 1.48%.
Median HART, Texas home value: $48,085
Median annual HART, Texas tax bill: $566, lower than the national median property tax bill of $2,400.
How are property taxes in Castro calculated?
Property taxes in HART, 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 HART's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in HART, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Hart, Castro County, Texas Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
1.17%
Estimate Property Tax Bill
$563
$522
How Does the Hart Property Tax Calculator Work?
Use this Hart property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Hart's median effective tax rate of 1.17% — based on actual property records in Castro 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 Hart's median effective rate across all local levies, providing a more accurate estimate than applying a single county millage rate.
Hart's rate is higher than the Texas median tax rate of 1.48% and the median property tax bill is $566, which is $1,834 lower than the state median bill. Your bill may vary by ZIP code within Hart, but the available ZIP code, 79043, shows the same median tax bill.
For a more precise estimate, scroll down to explore ZIP code-level tax rate trends across Hart.
About Hart Property Taxes
About Property Taxes in Hart, Castro, Texas
Hart’s median effective property tax rate of 1.17% is higher than the Texas state median of 1.48% and higher than the national median of 1.02%. This rate reflects the Castro 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 Hart. Homeowners in the 79043 ZIP code carry a median effective rate of 1.17%, while those in the same ZIP code pay 1.17%. This spread — 0 percentage points across the same city — reflects how school district boundaries and local assessment districts are drawn across Castro County. Understanding which part of Hart you live in can make a meaningful difference to your annual tax bill.
Hart 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 Hart, Castro 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 Hart's effective property tax rate to other cities in Texas and the median property tax rates in Texas and the U.S.
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 Hart Tax Rate
1.17%
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 Castro County Tax Rate
1.17%
Median Effective Texas Tax Rate
1.48%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Hart, Castro County, Texas
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 79043 | 0.61% | 0.80% | 1.17% | 1.61% | 2.15% |
Source: Ownwell
Property Tax Assessment Values Across Hart, Castro County, Texas
When examining property taxes in Hart, 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 Castro 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 Castro County, assessment notices are sent in May 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 Hart.
For example, the median home price in Hart is $48,085, with tax bills ranging significantly across the county. 79043 has the highest median home price at $48,085.
Property Tax Assessment Values Across Hart, Castro County, Texas
Source: Ownwell
$46,280
$85,763
$125,245
Median Hart Market Value
$48,085
Median Castro County Market Value
$61,610
Median Texas Market Value
$258,851
Median United States Market Value
$235,294
Property Tax Assessment Values Across Hart, Castro County, Texas
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 79043 | $15,360 | $29,148 | $48,085 | $76,550 | $127,635 |
Source: Ownwell
Property Tax Bills Across Hart, Castro County, Texas
Property tax bills in Hart are calculated from the assessed value of a home and the tax rate set by local taxing authorities. The assessed value is based on the market value of the property, and that value is then multiplied by the applicable tax rate to determine the annual bill. For homeowners, this means that changes in market conditions or local tax rates can directly affect how much is owed each year.
In Hart, the median home price is $48,085, and the median property tax bill is $566, which is well below the national median property tax bill of $2,400. The 25th percentile tax bill is $310, while the 75th percentile is $976 and the 90th percentile is $1,519. These figures show that property taxes in Hart are relatively modest, but even a small increase in assessed value can raise a homeowner’s bill.
Median Hart Tax Bill
$566
Median Castro County Tax Bill
$761
Median Texas Tax Bill
$3,441
Median United States Tax Bill
$2,400
Property Tax Bills Across Hart, Castro County, Texas
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 79043 | $158 | $310 | $566 | $976 | $1,519 |
Source: Ownwell
Don't miss the deadline to protest!
Dates | |
|---|---|
| Appeal Deadline | May 15 |
Links | |
|---|---|
| Castro Appraisal District | |
| Website | esearch.castrocad.org |