Summerfield, Castro County, Texas Property Taxes
Property Taxes in Summerfield, Texas
Median Summerfield, Texas effective property tax rate: 0.76%, significantly lower than the national median of 1.02%, and lower than the Texas state median of 1.48%.
Median Summerfield, Texas home value: $46,280
Median annual Summerfield, Texas tax bill: $373, $2,027 lower than the national median property tax bill of $2,400.
How are property taxes in Castro calculated?
Property taxes in Summerfield, 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 Summerfield's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Summerfield, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Summerfield, Castro County, Texas Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
0.76%
Estimate Property Tax Bill
$352
$326
How Does the Summerfield Property Tax Calculator Work?
Use this Summerfield property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Summerfield's median effective tax rate of 0.76% — 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 Summerfield'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 Summerfield: rates range from 0.76% in 79085 to 0.76% in 79085, 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 Summerfield.
About Summerfield Property Taxes
About Property Taxes in Summerfield, Castro, Texas
Summerfield’s median effective property tax rate of 0.76% is lower than the Texas state median of 1.48% and lower 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 can vary by subdivision throughout the city.
Property tax rates are not uniform across Summerfield. Homeowners in ZIP code 79085 carry a median effective rate of 0.76%, while those in the same ZIP code also pay 0.76%. This reflects how school district boundaries and local assessment districts are drawn across Castro County. Understanding where you live in Summerfield can still help you better evaluate your annual tax bill.
Summerfield 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 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 Summerfield, 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 Summerfield'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 Summerfield Tax Rate
0.76%
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 Summerfield, Castro County, Texas
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 79085 | 0.73% | 0.75% | 0.76% | 0.84% | 0.86% |
Source: Ownwell
Property Tax Assessment Values Across Summerfield, Castro County, Texas
When examining property taxes in Summerfield, 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 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. For example, the median home price in Summerfield is $46,280, with tax bills ranging significantly across the county. ZIP code 79085 has the highest median home price at $46,280.
Property Tax Assessment Values Across Summerfield, Castro County, Texas
Source: Ownwell
$46,280
$85,763
$125,245
Median Summerfield Market Value
$46,280
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 Summerfield, Castro County, Texas
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 79085 | $10,435 | $30,350 | $46,280 | $62,058 | $80,435 |
Source: Ownwell
Property Tax Bills Across Summerfield, Castro County, Texas
Property tax bills in Summerfield are based on the assessed value of a home and the local tax rate set for Castro County. When a property’s market value changes, the assessed value can change too, which affects the final bill. Homeowners are taxed on the value of their property, not on what they paid for it, so two similar homes can still have different tax bills if their assessed values differ.
In Summerfield, the median home price is $46,280, and the median property tax bill is $373.00. That amount sits well below the national median property tax bill of $2,400 and below the national median property tax rate of 1.02%. Tax bills can vary across homeowners, with the 25th percentile at $235, the 75th percentile at $450, and the 90th percentile at $591. For homeowners, this means property taxes are a recurring cost tied directly to local assessments and can have a meaningful impact on annual housing expenses.
Median Summerfield Tax Bill
$373
Median Castro County Tax Bill
$761
Median Texas Tax Bill
$3,441
Median United States Tax Bill
$2,400
Property Tax Bills Across Summerfield, Castro County, Texas
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 79085 | $87 | $235 | $373 | $450 | $591 |
Source: Ownwell
Don't miss the deadline to protest!
Dates | |
|---|---|
| Appeal Deadline | May 15 |
Links | |
|---|---|
| Castro Appraisal District | |
| Website | esearch.castrocad.org |