Caldwell, Gem County, Idaho Property Taxes
Property Taxes in Caldwell, Idaho
Median Caldwell, Idaho effective property tax rate: 0.23%, significantly lower than the national median of 1.02%, and lower than the Idaho state median of 0.42%.
Median Caldwell, Idaho home value: $477,216
Median annual Caldwell, Idaho tax bill: $1,102, $1,298 lower than the national median property tax bill of $2,400.
How are property taxes in Gem calculated?
Property taxes in Caldwell, Idaho 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 Caldwell's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Caldwell, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Caldwell, Gem County, Idaho Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
0.23%
Estimate Property Tax Bill
$1,098
$1,019
How Does the Caldwell Property Tax Calculator Work?
Use this Caldwell property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Caldwell's median effective tax rate of 0.23% — based on actual property records in Gem County — to generate your estimate.
Enter your property's estimated assessed value — the figure the local assessor uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Caldwell'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 Caldwell: rates range from 0.23% in 83607 to 0.23% in 83607, 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 Caldwell.
About Caldwell Property Taxes
About Property Taxes in Caldwell, Gem, Idaho
Caldwell's median effective property tax rate of 0.23% is lower than the Idaho state median of 0.42% and lower than the national median of 1.02%. This rate reflects the Gem County base levy combined with local school district levies and special assessment districts that vary by subdivision throughout the city.
Property tax rates are not uniform across Caldwell. Homeowners in the 83607 ZIP code carry a median effective rate of 0.23%, while those in the same ZIP code pay 0.23%. This spread reflects how school district boundaries and local assessment districts are drawn across Gem County. Understanding which part of Caldwell you live in can make a meaningful difference to your annual tax bill.
Caldwell homeowners who believe their assessed value is too high can file a formal appeal with the local Tax Assessor before the June 22, 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 Caldwell, Gem County, Idaho
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 Caldwell's effective property tax rate to other cities in Idaho and the median property tax rates in Idaho 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 Caldwell Tax Rate
0.23%
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 Gem County Tax Rate
0.26%
Median Effective Idaho Tax Rate
0.42%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Caldwell, Gem County, Idaho
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 83607 | 0.19% | 0.22% | 0.23% | 0.25% | 0.34% |
Source: Ownwell
Property Tax Assessment Values Across Caldwell, Gem County, Idaho
When examining property taxes in Caldwell, Idaho, 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 Gem 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 Gem County, assessment notices are sent in June each year. They'll typically reach your mailbox by the middle of June.
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 Caldwell.
For example, the median home price in Caldwell is $477,216, with tax bills ranging significantly across the county. 83607 has the highest median home price at $477,216.
Property Tax Assessment Values Across Caldwell, Gem County, Idaho
Source: Ownwell
$181,771
$379,836
$577,900
Median Caldwell Market Value
$477,216
Median Gem County Market Value
$379,845
Median Idaho Market Value
$389,309
Median United States Market Value
$235,294
Property Tax Assessment Values Across Caldwell, Gem County, Idaho
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 83607 | $135,259 | $316,517 | $477,216 | $684,144 | $901,895 |
Source: Ownwell
Property Tax Bills Across Caldwell, Gem County, Idaho
How are property tax bills calculated in Caldwell?
Property tax bills in Caldwell are based on the assessed value of a home and the local tax rate applied to that value. When a property’s market value changes, the assessed value can change too, which can raise or lower the tax bill. Local taxing authorities use that assessment to determine how much a homeowner owes each year.
What factors affect the amount owed? The home’s value, the tax rate, and any local levies all play a role. For a median home price of $477,216, tax bills in the area can vary widely, with the 25th percentile at $640, the 75th percentile at $1,604, and the 90th percentile at $2,287. The median tax bill in the area is $1,102, which is below the national median property tax bill of $2,400.
How does this affect homeowners? A higher assessed value can mean a higher bill, even if the homeowner’s income has not changed.
Median Caldwell Tax Bill
$1,102
Median Gem County Tax Bill
$1,087
Median Idaho Tax Bill
$1,726
Median United States Tax Bill
$2,400
Property Tax Bills Across Caldwell, Gem County, Idaho
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 83607 | $332 | $640 | $1,102 | $1,604 | $2,287 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | June 22 |
Links | |
|---|---|
| Gem Tax Assessor | |
| Website | experience.arcgis.com |