Riley, St. Clair County, Michigan Property Taxes
Property Taxes in Riley, Michigan
Median Riley, Michigan effective property tax rate: 0.47%, significantly lower than the national median of 1.02%, and lower than the Michigan state median of 1.05%.
Median Riley, Michigan home value: $336,600
Median annual Riley, Michigan tax bill: $1,499, $901 lower than the national median property tax bill of $2,400.
How are property taxes in St. Clair calculated?
Property taxes in Riley, Michigan 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 Riley's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Riley, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Riley, St. Clair County, Michigan Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
0.47%
Estimate Property Tax Bill
$1,582
$1,468
How Does the Riley Property Tax Calculator Work?
Use this Riley property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Riley's median effective tax rate of 0.47% — based on actual property records in St. Clair County — to generate your estimate.
Enter your property's estimated assessed value — the figure the local assessment 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 Riley'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 Riley: rates range from 0.47% in 48041 to 0.47% in 48041, 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 Riley.
About Riley Property Taxes
About Property Taxes in Riley, St. Clair, Michigan
Riley's median effective property tax rate of 0.47% is lower than the Michigan state median of 1.05% and lower than the national median of 1.02%. This rate reflects the St. Clair County base levy combined with local school district levies and Tax increment finance districts that vary by subdivision throughout the city.
Property tax rates are not uniform across Riley. Homeowners in the 48041 ZIP code carry a median effective rate of 0.47%, while those in 48041 pay 0.47%. This spread — 0.00 percentage points across the same city — reflects how school district boundaries and local assessment districts are drawn across St. Clair County. Understanding which part of Riley you live in can make a meaningful difference to your annual tax bill.
Riley homeowners who believe their assessed value is too high can file a formal appeal with the local Tax Assessor before the March 9, 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 Riley, St. Clair County, Michigan
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 Riley's effective property tax rate to other cities in Michigan and the median property tax rates in Michigan 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 Riley Tax Rate
0.47%
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 St. Clair County Tax Rate
0.72%
Median Effective Michigan Tax Rate
1.05%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Riley, St. Clair County, Michigan
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 48041 | 0.30% | 0.36% | 0.47% | 0.57% | 0.78% |
Source: Ownwell
Property Tax Assessment Values Across Riley, St. Clair County, Michigan
When examining property taxes in Riley, Michigan, 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 St. Clair 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 St. Clair County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of the month when notices are sent.
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 Riley.
For example, the median home price in Riley is $336,600, with tax bills ranging significantly across the county. 48041 has the highest median home price at $336,600.
Property Tax Assessment Values Across Riley, St. Clair County, Michigan
Source: Ownwell
$54,200
$198,700
$343,200
Median Riley Market Value
$336,600
Median St. Clair County Market Value
$214,800
Median Michigan Market Value
$213,740
Median United States Market Value
$235,294
Property Tax Assessment Values Across Riley, St. Clair County, Michigan
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 48041 | $186,200 | $251,400 | $336,600 | $421,000 | $498,200 |
Source: Ownwell
Property Tax Bills Across Riley, St. Clair County, Michigan
Property tax bills in Riley are calculated by applying the local tax rate to a home’s assessed value, which is based on the market value of the property. For a home with a median price of $336,600, the tax bill depends on how that value is assessed and the taxing jurisdictions that apply. Local governments use the assessed value to fund services such as schools, roads, and public safety, so the final bill can vary even among similar homes.
Homeowners in Riley may see bills that differ based on exemptions, assessment changes, and local levy rates. The 25th percentile tax bill is $1,104, while the 75th percentile is $2,094 and the 90th percentile is $2,826. The median tax bill in the area is $1,499, which is below the national median property tax bill of $2,400 and also below the national median property tax rate of 1.02%. This means property taxes can have a meaningful impact on monthly housing costs, especially when assessments rise faster than expected.
Median Riley Tax Bill
$1,499
Median St. Clair County Tax Bill
$1,650
Median Michigan Tax Bill
$2,084
Median United States Tax Bill
$2,400
Property Tax Bills Across Riley, St. Clair County, Michigan
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 48041 | $799 | $1,104 | $1,499 | $2,094 | $2,826 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | March 9 |
Links | |
|---|---|
| St. Clair Tax Assessor | |
| Website | www.stclaircounty.org |