Castine, Hancock County, Maine Property Taxes
Property Taxes in Castine, Maine
Median Castine, Maine effective property tax rate: 0.95%, significantly lower than the national median of 1.02%, and lower than the Maine state median of 1.47%.
Median Castine, Maine home value: $474,400
Median annual Castine, Maine tax bill: $4,507, higher than the national median property tax bill of $2,400.
How are property taxes in Hancock calculated?
Property taxes in Castine, Maine 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 Castine's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Castine, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Castine, Hancock County, Maine Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
0.95%
Estimate Property Tax Bill
$4,507
$4,182
How Does the Castine Property Tax Calculator Work?
Use this Castine property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Castine's median effective tax rate of 0.95% — based on actual property records in Hancock 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 Castine'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 Castine: rates range from 0.95% in 04421 to 0.95% in 04421, 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 Castine.
About Castine Property Taxes
About Property Taxes in Castine, Hancock, Maine
Castine’s median effective property tax rate of 0.95% is lower than the Maine state median of 1.47% and lower than the national median of 1.02%. This rate reflects the Hancock 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 Castine. Homeowners in ZIP code 04421 carry a median effective rate of 0.95%, and the same ZIP code also has a median tax bill of $4,507. This reflects how school district boundaries and local assessment districts are drawn across Hancock County.
Castine homeowners who believe their assessed value is too high can file a formal appeal with the Tax Assessor before January 1, 2026.
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 Castine, Hancock County, Maine
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 Castine's effective property tax rate to other cities in Maine and the median property tax rates in Maine 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 Castine Tax Rate
0.95%
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 Hancock County Tax Rate
1.17%
Median Effective Maine Tax Rate
1.47%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Castine, Hancock County, Maine
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 04421 | 0.95% | 0.95% | 0.95% | 0.95% | 0.95% |
Source: Ownwell
Property Tax Assessment Values Across Castine, Hancock County, Maine
When examining property taxes in Castine, Maine, 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 Hancock 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 Hancock County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of {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 Castine.
For example, the median home price in Castine is $474,400, with tax bills ranging significantly across the county. 04421 has the highest median home price at $474,400.
Property Tax Assessment Values Across Castine, Hancock County, Maine
Source: Ownwell
$65,900
$339,100
$612,300
Median Castine Market Value
$474,400
Median Hancock County Market Value
$261,000
Median Maine Market Value
$242,800
Median United States Market Value
$235,294
Property Tax Assessment Values Across Castine, Hancock County, Maine
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 04421 | $214,320 | $304,500 | $474,400 | $737,000 | $1,087,820 |
Source: Ownwell
Property Tax Bills Across Castine, Hancock County, Maine
Property tax bills in Castine are calculated by applying the local tax rate to a home’s assessed value, which is based on the market value of the property. Local assessors consider the home itself, the land, and other taxable features when determining that value. For homeowners, this means a higher assessed value generally leads to a higher tax bill, while a lower assessed value can reduce what is owed.
The median home price in Castine is $474,400, and the median property tax bill is $4,507. That figure is above the national median property tax bill of $2,400 and reflects how property taxes can vary widely from home to home. Bills in the area also show a broad range, with the 25th percentile at $2,893, the 75th percentile at $7,002, and the 90th percentile at $10,335.
Median Castine Tax Bill
$4,507
Median Hancock County Tax Bill
$3,139
Median Maine Tax Bill
$3,569
Median United States Tax Bill
$2,400
Property Tax Bills Across Castine, Hancock County, Maine
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 04421 | $2,036 | $2,893 | $4,507 | $7,002 | $10,335 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | January 1 |
Links | |
|---|---|
| Hancock Tax Assessor | |
| Website | records.hancockcountymaine.gov |