Coos County, New Hampshire Property Taxes
Property Taxes in Coos County, New Hampshire
Median Coos County effective property tax rate: 1.92%, significantly higher than the national median of 1.02%.
Median Coos County home value: $163,300
Median annual Coos County tax bill: $3,388, $988 higher than the national median property tax bill of $2,400.
How are property taxes in Coos County calculated?
Property taxes in Coos 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 Coos County or another part of Coos County, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Coos County, New Hampshire Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
1.92%
Estimate Property Tax Bill
$3,135
$2,910
How Does the Coos County Property Tax Calculator Work?
Use this Coos County property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Coos County's median effective tax rate of 1.92% to generate your estimate.
Enter your property's estimated assessed value — the figure the assessment office assigns for tax purposes, which is typically lower than market value after applicable exemptions. Our calculator uses the median effective rate for a more accurate estimate than the statutory millage rate alone.
Your actual bill may vary based on your specific exemptions, local school district levies, and any special assessment districts that apply to your property. Coos County's median tax rate is higher than New Hampshire's 1.82% median rate, and the median tax bill is $3,388, which is $988 higher than the state median and above the $2,400 national median property tax bill.
For a more precise estimate, scroll down to explore city and ZIP code-level tax rate trends across Coos County.
Property Tax Rates Across Coos County, New Hampshire
What Are Effective Property Tax Rates Across Coos County?
Local government entities set tax rates, which vary widely across Coos County. Each year, the county estimates its budget for public services and divides that total by the assessed value of all taxable property within its jurisdiction.
Below, compare Coos County's effective property tax rate to other counties in New Hampshire or the U.S. median of 1.02%.
Coos County's median effective rate stands at 1.92%, which is higher than the national median of 1.02%. Within Coos County, the highest rate is found in Berlin at 3.09%, while Wentworths Location has the lowest at 0.69%.
These variations reflect differences in local school district levies, special assessment districts assessments, and special district bonds — which compound the base county rate.
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 Coos County Tax Rate
1.92%
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 New Hampshire Tax Rate
1.82%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Coos County, New Hampshire
| City | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Berlin | 3.09% | 3.09% | 3.09% | 3.09% | 3.09% |
| Bethlehem | 1.64% | 1.64% | 1.64% | 1.64% | 1.64% |
| Carroll | 1.19% | 1.19% | 1.19% | 1.19% | 1.19% |
| Clarksville | 2.17% | 2.17% | 2.17% | 2.17% | 2.17% |
| Colebrook | 0.74% | 1.60% | 2.23% | 3.50% | 3.50% |
| Columbia | 2.23% | 2.23% | 2.23% | 2.23% | 2.23% |
| Dalton | 1.51% | 1.51% | 1.51% | 1.51% | 1.51% |
| Dummer | 0.87% | 0.87% | 0.87% | 0.87% | 0.87% |
| Errol | 0.49% | 0.96% | 0.96% | 0.96% | 0.96% |
| Gorham | 2.83% | 2.83% | 2.83% | 2.83% | 2.83% |
| Groveton | 1.09% | 2.24% | 2.24% | 2.24% | 2.24% |
| Jefferson | 1.79% | 1.79% | 1.79% | 1.79% | 1.79% |
| Lancaster | 1.92% | 1.92% | 1.92% | 1.92% | 1.92% |
| Milan | 0.87% | 2.33% | 2.33% | 2.33% | 2.33% |
| North Stratford | 2.23% | 2.85% | 2.85% | 2.85% | 2.85% |
| Pittsburg | 0.96% | 0.96% | 0.96% | 0.96% | 2.17% |
| Randolph | 1.11% | 1.11% | 1.11% | 1.11% | 1.11% |
| Shelburne | 1.89% | 1.89% | 1.90% | 1.90% | 1.90% |
| Stark | 1.09% | 1.09% | 1.09% | 1.09% | 1.09% |
| Stewartstown | 1.60% | 1.60% | 1.60% | 1.60% | 1.60% |
| Stratford | 2.23% | 2.38% | 2.85% | 2.85% | 2.85% |
| Twin Mountain | 1.19% | 1.19% | 1.19% | 1.19% | 1.19% |
| Wentworths Location | 0.41% | 0.51% | 0.69% | 0.76% | 0.76% |
| Whitefield | 1.19% | 1.19% | 1.64% | 1.64% | 1.64% |
| Bretton Woods | N/A | N/A | N/A | N/A | N/A |
| Lincoln Plantation | N/A | N/A | N/A | N/A | N/A |
| Northumberland | N/A | N/A | N/A | N/A | N/A |
| West Stewartstown | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Property Tax Assessment Values Across Coos County, New Hampshire
When examining property taxes in Coos 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 Coos County property valuation process 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 Coos County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of March.
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 Coos County.
For example, the median tax bill in Coos County is $3,388, with tax bills ranging significantly across the county. Randolph has the highest median home price at $365,700.
Property Tax Assessment Values Across Coos County, New Hampshire
Source: Ownwell
$66,013
$215,857
$365,700
Median Coos County Market Value
$163,300
Median New Hampshire Market Value
$360,500
Median United States Market Value
$235,294
Property Tax Assessment Values Across Coos County, New Hampshire
| City | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Berlin | $84,220 | $108,200 | $135,800 | $169,900 | $212,280 |
| Bethlehem | $135,600 | $227,908 | $291,600 | $422,700 | $531,700 |
| Carroll | $117,000 | $182,510 | $247,140 | $306,740 | $436,780 |
| Clarksville | $16,520 | $53,980 | $110,706 | $161,906 | $221,770 |
| Colebrook | $26,380 | $53,615 | $114,105 | $175,676 | $245,546 |
| Columbia | $30,212 | $38,858 | $66,013 | $107,690 | $111,921 |
| Dalton | $38,280 | $102,666 | $189,900 | $281,475 | $386,048 |
| Dummer | $114,730 | $194,411 | $320,550 | $422,751 | $527,741 |
| Errol | $54,648 | $116,615 | $208,800 | $288,175 | $360,048 |
| Gorham | $37,820 | $86,225 | $162,900 | $217,250 | $295,170 |
| Groveton | $51,704 | $92,638 | $128,255 | $179,084 | $247,550 |
| Jefferson | $79,040 | $131,000 | $186,500 | $251,600 | $328,979 |
| Lancaster | $42,740 | $137,200 | $206,700 | $296,300 | $372,134 |
| Milan | $59,090 | $98,800 | $145,871 | $192,772 | $250,003 |
| North Stratford | $11,100 | $43,575 | $80,718 | $131,425 | $175,450 |
| Pittsburg | $58,380 | $140,910 | $249,900 | $353,000 | $466,700 |
| Randolph | $211,510 | $277,188 | $365,700 | $495,800 | $634,331 |
| Shelburne | $7,950 | $109,425 | $193,940 | $257,790 | $320,300 |
| Stark | $117,380 | $179,714 | $271,300 | $386,174 | $494,940 |
| Stewartstown | $88,380 | $141,625 | $211,450 | $273,909 | $360,678 |
| Stratford | $19,860 | $34,050 | $82,150 | $168,650 | $238,385 |
| Twin Mountain | $61,200 | $238,432 | $347,400 | $466,600 | $562,050 |
| Wentworths Location | $44,853 | $83,000 | $165,895 | $252,020 | $347,101 |
| Whitefield | $54,400 | $169,735 | $288,200 | $463,760 | $660,900 |
| Bretton Woods | N/A | N/A | N/A | N/A | N/A |
| Lincoln Plantation | N/A | N/A | N/A | N/A | N/A |
| Northumberland | N/A | N/A | N/A | N/A | N/A |
| West Stewartstown | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Property Tax Bills Across Coos County, New Hampshire
Property tax bills in Coos County are based on the assessed value of a home and the local tax rate set by taxing authorities. When a property’s market value changes, the assessed value can change too, which affects the final bill. Homeowners are taxed on that assessed value, so higher-valued homes generally face larger tax bills.
In Coos County, the median home price is $163,300, and the property tax burden can vary widely across the county. The 25th percentile tax bill is $2,004, while the 75th percentile reaches $4,822. At the high end, the 90th percentile tax bill is $6,515. That range shows how location, home value, and local tax rates can create very different outcomes for homeowners.
Compared with the national median property tax rate of 1.02% and the national median property tax bill of $2,400, many homeowners in Coos County may see bills that are above or below the national norm depending on where they live and how their property is assessed.
Median Coos County Tax Bill
$3,388
Median New Hampshire Tax Bill
$6,530
Median United States Tax Bill
$2,400
Property Tax Bills Across Coos County, New Hampshire
| City | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Berlin | $2,601 | $3,339 | $4,192 | $5,245 | $6,552 |
| Bethlehem | $2,224 | $3,738 | $4,782 | $6,932 | $8,720 |
| Carroll | $1,392 | $2,172 | $2,941 | $3,650 | $5,198 |
| Clarksville | $352 | $1,126 | $2,348 | $3,466 | $4,815 |
| Colebrook | $275 | $1,076 | $2,608 | $4,378 | $6,176 |
| Columbia | $673 | $866 | $1,471 | $2,400 | $2,493 |
| Dalton | $577 | $1,546 | $2,872 | $4,240 | $5,814 |
| Dummer | $1,020 | $1,703 | $2,796 | $3,686 | $4,602 |
| Errol | $382 | $903 | $1,642 | $2,700 | $3,441 |
| Gorham | $1,135 | $2,478 | $4,600 | $6,080 | $8,314 |
| Groveton | $1,109 | $1,951 | $2,732 | $3,690 | $4,828 |
| Jefferson | $1,399 | $2,350 | $3,346 | $4,505 | $5,902 |
| Lancaster | $823 | $2,711 | $4,020 | $5,721 | $7,293 |
| Milan | $937 | $2,006 | $3,254 | $4,316 | $5,554 |
| North Stratford | $303 | $1,178 | $2,094 | $3,518 | $4,841 |
| Pittsburg | $819 | $1,546 | $2,496 | $3,450 | $4,577 |
| Randolph | $2,356 | $3,088 | $4,074 | $5,523 | $7,066 |
| Shelburne | $173 | $2,186 | $3,800 | $4,932 | $6,074 |
| Stark | $1,275 | $1,952 | $2,946 | $4,194 | $5,375 |
| Stewartstown | $1,419 | $2,290 | $3,379 | $4,377 | $5,837 |
| Stratford | $566 | $880 | $2,028 | $4,634 | $6,797 |
| Twin Mountain | $2,664 | $3,058 | $4,831 | $5,791 | $6,871 |
| Wentworths Location | $188 | $452 | $906 | $1,395 | $2,102 |
| Whitefield | $1,028 | $2,678 | $4,316 | $6,267 | $8,858 |
| Bretton Woods | N/A | N/A | N/A | N/A | N/A |
| Lincoln Plantation | N/A | N/A | N/A | N/A | N/A |
| Northumberland | N/A | N/A | N/A | N/A | N/A |
| West Stewartstown | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | March 1 |
Links | |
|---|---|
| Coos Tax Assessor | |
| Website | nhtaxkiosk.com |