Knox County, Maine Property Taxes
Median Knox County effective property tax rate: 1.55%, significantly higher than the national median of 1.02%.
Median Knox County home value: $198,500
Median annual Knox County tax bill: $3,340, $940 higher than the national median property tax bill of $2,400.
How are property taxes in Knox County calculated?
Property taxes in Knox County 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 your county's property tax system, exemptions, and reduction opportunities can lead to significant savings. Whether you live in Rockland or another part of Knox County, knowing local tax details benefits homeowners and investors.
Last Updated March 1, 2025
Knox County, Maine Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
1.55%
Estimate Property Tax Bill
$3,077
$2,855
Property Tax Rates Across Knox County, Maine
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 Knox County Tax Rate
1.55%
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 Maine Tax Rate
1.57%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Knox County, Maine
| City | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Appleton | 2.15% | 2.15% | 2.15% | 2.15% | 2.15% |
| Camden | 1.32% | 1.32% | 1.32% | 1.32% | 1.32% |
| Cushing | 1.55% | 1.55% | 1.55% | 1.55% | 1.55% |
| Friendship | 1.17% | 1.17% | 1.17% | 1.17% | 1.17% |
| Hope | 1.71% | 1.71% | 1.71% | 1.72% | 1.72% |
| North Haven | 1.45% | 1.45% | 1.45% | 1.45% | 1.45% |
| Owls Head | 1.40% | 1.40% | 1.40% | 1.40% | 1.40% |
| Rockland | 2.43% | 2.43% | 2.43% | 2.43% | 2.43% |
| Saint George | 1.01% | 1.01% | 1.01% | 1.01% | 1.01% |
| South Thomaston | 1.61% | 1.61% | 1.62% | 1.62% | 1.62% |
| Spruce Head | 1.01% | 1.01% | 1.01% | 1.01% | 1.01% |
| Tenants Harbor | 1.01% | 1.01% | 1.01% | 1.01% | 1.01% |
| Thomaston | 2.18% | 2.18% | 2.18% | 2.18% | 2.18% |
| Union | 1.55% | 1.55% | 1.55% | 1.55% | 1.55% |
| Vinalhaven | 1.23% | 1.23% | 1.23% | 1.23% | 1.23% |
| Warren | 1.39% | 1.39% | 1.39% | 1.39% | 1.39% |
| Washington | 1.56% | 1.56% | 1.56% | 1.56% | 1.56% |
| Rockport | N/A | N/A | N/A | N/A | N/A |
| West Rockport | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Property Tax Assessment Values Across Knox County, Maine
When examining property taxes in Knox County, 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 Knox County Assessor's 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.
In Knox County, assessment notices are sent in the spring each year. They’ll typically reach your mailbox by the middle of April. 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 Knox County.
For example, the median tax bill in Knox County is $3,317, with tax bills ranging significantly across the county. Camden has the highest median home price at $402,600.
Median Knox County Market Value
$198,500
Median Maine Market Value
$204,200
Median United States Market Value
$235,294
Property Tax Assessment Values Across Knox County, Maine
| City | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Appleton | $85,100 | $117,050 | $159,200 | $208,650 | $269,360 |
| Camden | $208,760 | $293,500 | $402,600 | $601,800 | $953,160 |
| Cushing | $79,830 | $127,945 | $193,540 | $311,910 | $518,090 |
| Friendship | $81,690 | $123,375 | $182,200 | $336,500 | $508,800 |
| Hope | $103,810 | $153,075 | $207,050 | $276,050 | $362,000 |
| North Haven | $150,320 | $190,800 | $273,100 | $374,100 | $569,640 |
| Owls Head | $106,090 | $162,360 | $239,940 | $419,920 | $617,430 |
| Rockland | $109,520 | $141,150 | $178,000 | $226,600 | $303,260 |
| Saint George | $131,500 | $172,000 | $229,700 | $407,350 | $690,260 |
| South Thomaston | $117,410 | $163,075 | $229,250 | $332,625 | $462,830 |
| Spruce Head | $118,560 | $161,900 | $253,200 | $425,000 | $713,460 |
| Tenants Harbor | $154,400 | $195,950 | $273,000 | $415,800 | $587,140 |
| Thomaston | $94,640 | $123,406 | $160,924 | $209,306 | $274,669 |
| Union | $133,040 | $188,000 | $255,400 | $332,300 | $447,980 |
| Vinalhaven | $130,360 | $170,000 | $237,800 | $347,500 | $572,780 |
| Warren | $106,000 | $170,150 | $231,500 | $291,750 | $364,500 |
| Washington | $67,590 | $115,200 | $163,950 | $205,225 | $248,190 |
| Rockport | N/A | N/A | N/A | N/A | N/A |
| West Rockport | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Property Tax Bills Across Knox County, Maine
Median Knox County Tax Bill
$3,340
Median Maine Tax Bill
$3,200
Median United States Tax Bill
$2,400
Property Tax Bills Across Knox County, Maine
| City | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Appleton | $1,830 | $2,516 | $3,423 | $4,486 | $5,791 |
| Camden | $2,779 | $3,887 | $5,317 | $7,948 | $12,620 |
| Cushing | $1,237 | $1,983 | $3,000 | $4,834 | $8,030 |
| Friendship | $956 | $1,444 | $2,132 | $3,937 | $5,953 |
| Hope | $1,780 | $2,625 | $3,554 | $4,734 | $6,206 |
| North Haven | $2,180 | $2,767 | $3,960 | $5,424 | $8,260 |
| Owls Head | $1,485 | $2,273 | $3,359 | $5,879 | $8,644 |
| Rockland | $2,658 | $3,426 | $4,318 | $5,497 | $7,361 |
| Saint George | $1,328 | $1,737 | $2,320 | $4,114 | $6,972 |
| South Thomaston | $1,896 | $2,628 | $3,698 | $5,348 | $7,459 |
| Spruce Head | $1,198 | $1,635 | $2,612 | $4,477 | $7,367 |
| Tenants Harbor | $1,559 | $1,980 | $2,757 | $4,200 | $5,930 |
| Thomaston | $2,065 | $2,693 | $3,512 | $4,567 | $5,993 |
| Union | $2,154 | $2,928 | $3,962 | $5,172 | $6,944 |
| Vinalhaven | $1,603 | $2,091 | $2,925 | $4,274 | $7,046 |
| Warren | $1,473 | $2,365 | $3,218 | $4,056 | $5,067 |
| Washington | $1,055 | $1,798 | $2,558 | $3,201 | $3,872 |
| Rockport | N/A | N/A | N/A | N/A | N/A |
| West Rockport | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell