Thermal, Imperial County, California Property Taxes
Property Taxes in Thermal, California
Median Thermal, California effective property tax rate: 2.25%, significantly higher than the national median of 1.02%, and higher than the California state median of 1.21%.
Median Thermal, California home value: $80,490
Median annual Thermal, California tax bill: $2,153, $247 lower than the national median property tax bill of $2,400.
How are property taxes in Imperial County calculated?
Property taxes in Thermal, California 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 Thermal's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Thermal, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Thermal, Imperial County, California Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
2.25%
Estimate Property Tax Bill
$1,811
$1,681
How Does the Thermal Property Tax Calculator Work?
Use this Thermal property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Thermal's median effective tax rate of 2.25% — based on actual property records in Imperial 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 Thermal's median effective rate across all local levies, providing a more accurate estimate than applying a single county millage rate.
Thermal's rate is higher than the 1.21% state median tax rate, while the median tax bill of $2,153 is $247 lower than the state median tax bill. In Thermal, the highest and lowest median tax bill are both $2,153 in ZIP code 92274.
For a more precise estimate, scroll down to explore ZIP code-level tax rate trends across Thermal.
About Thermal Property Taxes
About Property Taxes in Thermal, Imperial, California
Thermal’s median effective property tax rate of 2.25% is higher than the California state median of 1.21% and higher than the national median of 1.02%. This rate reflects the Imperial County base levy combined with local school district levies and other local assessments that can vary by area.
Property tax rates are not uniform across Thermal. In this case, the highest and lowest median effective rates are both 2.25% in ZIP code 92274, so there is no spread within the available ZIP-level data. That means homeowners in this part of Imperial County face the same median rate across the city.
Thermal homeowners who believe their assessed value is too high can file a formal appeal with the Imperial County Tax Assessor before the November 30, 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 Thermal, Imperial County, California
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 Thermal's effective property tax rate to other cities in California and the median property tax rates in California and the U.S.
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 Thermal Tax Rate
2.25%
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 Imperial County Tax Rate
1.17%
Median Effective California Tax Rate
1.21%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Thermal, Imperial County, California
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 92274 | 1.47% | 1.79% | 2.25% | 3.17% | 4.90% |
Source: Ownwell
Property Tax Assessment Values Across Thermal, Imperial County, California
When examining property taxes in Thermal, California, 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 Imperial County assessor 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 Imperial 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 Thermal.
For example, the median home price in Thermal is $80,490, with tax bills ranging significantly across the county. 92274 has the highest median home price at $80,490.
Property Tax Assessment Values Across Thermal, Imperial County, California
Source: Ownwell
$21,880
$136,631
$251,382
Median Thermal Market Value
$80,490
Median Imperial County Market Value
$177,768
Median California Market Value
$427,605
Median United States Market Value
$235,294
Property Tax Assessment Values Across Thermal, Imperial County, California
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 92274 | $21,241 | $42,370 | $80,490 | $145,699 | $200,680 |
Source: Ownwell
Property Tax Bills Across Thermal, Imperial County, California
Property tax bills in Thermal are based on the assessed value of a home and the local tax rate set for Imperial County. When a property’s market value changes, the assessed value can also change, which affects the final bill. For homeowners, this means the amount owed each year is tied to both the value of the property and the tax rules applied in the area.
In Thermal, the median home price is $80,490, and the median property tax bill is $2,153. That amount is below the national median property tax bill of $2,400, but many homeowners still see bills that vary widely. The 25th percentile tax bill is $1,443, while the 75th percentile is $3,094 and the 90th percentile reaches $3,974. These differences show how property taxes can affect homeowners unevenly, depending on the assessed value of the home and the local taxing structure.
Median Thermal Tax Bill
$2,153
Median Imperial County Tax Bill
$2,267
Median California Tax Bill
$5,134
Median United States Tax Bill
$2,400
Property Tax Bills Across Thermal, Imperial County, California
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 92274 | $470 | $1,443 | $2,153 | $3,094 | $3,974 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | November 30 |
Links | |
|---|---|
| Imperial Tax Assessor | |
| Website | common1.mptsweb.com |