Property Taxes in Mammoth, Arizona
Median Mammoth, Arizona effective property tax rate: 0.65%, significantly lower than the national median of 1.02%, and lower than the Arizona state median of 0.51%.
Median Mammoth, Arizona home value: $88,562
Median annual Mammoth, Arizona tax bill: $411, lower than the national median property tax bill of $2,400.
How are property taxes in Pinal calculated?
Property taxes in Mammoth, Arizona 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 Mammoth's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Mammoth, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
How Does the Mammoth Property Tax Calculator Work?
Use this Mammoth property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Mammoth's median effective tax rate of 0.65% — based on actual property records in Pinal 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 Mammoth'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 Mammoth: rates range from 0.65% in 85618 to 0.65% in 85618, 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 Mammoth.
About Mammoth Property Taxes
About Property Taxes in Mammoth, Pinal, Arizona
Mammoth's median effective property tax rate of 0.65% is higher than the Arizona state median of 0.51% and lower than the national median of 1.02%. This rate reflects the Pinal County base levy combined with local school district levies and Community facilities districts (CFDs) that vary by subdivision throughout the city.
Property tax rates are not uniform across Mammoth. Homeowners in the 85618 ZIP code carry a median effective rate of 0.65%, while those in 85618 pay 0.65%. This spread — 0.00 percentage points across the same city — reflects how school district boundaries and local assessment districts are drawn across Pinal County. Understanding which part of Mammoth you live in can make a meaningful difference to your annual tax bill.
Mammoth homeowners who believe their assessed value is too high can file a formal appeal with the local Tax Assessor before the April 28, 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 Mammoth, Pinal County, Arizona
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 Mammoth's effective property tax rate to other cities in Arizona and the median property tax rates in Arizona 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 Mammoth Tax Rate
0.65%
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 Pinal County Tax Rate
0.58%
Median Effective Arizona Tax Rate
0.51%
Median Effective United States Tax Rate
1.27%
Property Tax Rates Across Mammoth, Pinal County, Arizona
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 85618 | 0.32% | 0.41% | 0.65% | 1.02% | 1.24% |
Source: Ownwell
Property Tax Assessment Values Across Mammoth, Pinal County, Arizona
When examining property taxes in Mammoth, Arizona, 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 Pinal County assessment office 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 are sent in February each year in Pinal County. They typically reach your mailbox by the middle of the month.
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. The median home price in Mammoth is $88,562, and the median tax bill is $411, well below the national median property tax bill of $2,400.
Property Tax Assessment Values Across Mammoth, Pinal County, Arizona
Source: Ownwell
$33,970
$456,047
$878,123
Median Mammoth Market Value
$88,562
Median Pinal County Market Value
$273,961
Median Arizona Market Value
$327,500
Median United States Market Value
$274,101
Property Tax Assessment Values Across Mammoth, Pinal County, Arizona
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 85618 | $10,388 | $29,265 | $88,562 | $115,441 | $155,181 |
Source: Ownwell
Property Tax Bills Across Mammoth, Pinal County, Arizona
Property tax bills in Mammoth are based on the assessed value of a home, not its market price. Local tax rates are applied to that assessed value to determine the amount a homeowner owes each year. In Pinal County, the median home price is $88,562, which helps show the level at which many tax bills are calculated.
The typical tax bill can vary widely depending on the home’s assessed value and the taxing jurisdictions that apply to the property. In Mammoth, the 25th percentile tax bill is $219, while the 75th percentile is $701 and the 90th percentile is $1,086. The median tax bill in ZIP code 85618 is $411.
For homeowners, this means property taxes can have a noticeable impact on annual housing costs. Even among homes in the same area, differences in assessed value and local tax rates can lead to very different bills.
Median Mammoth Tax Bill
$411
Median Pinal County Tax Bill
$1,507
Median Arizona Tax Bill
$1,695
Median United States Tax Bill
$3,209
Property Tax Bills Across Mammoth, Pinal County, Arizona
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 85618 | $102 | $219 | $411 | $701 | $1,086 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | April 18 |
Links | |
|---|---|
| Pinal Tax Assessor | |
| Website | www.pinal.gov |