New Hampshire / Merrimack County / Loudon
2025 rate · set by the DRA November 18, 2025
Loudon property tax rate
Loudon's 2025 property tax rate is $22.75 per $1,000 of assessed value. A property assessed at $300,000 owes $6,825.00 for the year. That ranks 36th highest of New Hampshire's 234 towns and cities, $5.85 above the $16.90 state median.
- 1Local school $14.06
- 2State education $1.56
- 3County $2.67
- 4Municipal $4.46
- 5Bill on $300,000 $6,825
Your Loudon tax bill
The bill before exemptions and credits. Village district or precinct taxes, where they apply, are billed on top. Compare another town.
Where Loudon's $22.75 goes
The rate is four rates added together. The local school rate is the biggest piece at $14.06, 62% of the total. Together the two school rates (local $14.06 and state education $1.56) come to $15.62, or 69% of every tax dollar. The municipal rate of $4.46 funds Loudon's own town budget, and the county rate of $2.67 is Loudon's share of the Merrimack County budget.
| Part of the rate | Loudon | Share | NH median | Difference |
|---|---|---|---|---|
| Municipal | $4.46 | 20% | $4.59 | −$0.13 |
| County | $2.67 | 12% | $1.34 | +$1.33 |
| Local school | $14.06 | 62% | $9.75 | +$4.31 |
| State education | $1.56 | 7% | $1.13 | +$0.43 |
| Total | $22.75 | 100% | $16.90 | +$5.85 |
Medians are taken part by part across all 234 municipalities, so the four part medians do not add up to the median total.
Loudon's rate in 2024 and 2025
The total rate fell $0.50 (2.15%) from $23.25 in 2024, and the part that moved most was the municipal rate, down $2.10. Over the same year Loudon's assessed valuation (without utilities) went from $707,006,003 to $712,088,064, up 0.72%. With the tax base nearly flat, the lower rate passes through to bills: the same $300,000 assessment owes $150.00 less than in 2024.
Tax on common assessed values in Loudon
| Assessed value | 2025 bill | At the 2024 rate | Versus NH median rate |
|---|---|---|---|
| $200,000 | $4,550.00 | $4,650.00 | +$1,170.00 |
| $300,000 | $6,825.00 | $6,975.00 | +$1,755.00 |
| $400,000 | $9,100.00 | $9,300.00 | +$2,340.00 |
| $500,000 | $11,375.00 | $11,625.00 | +$2,925.00 |
| $750,000 | $17,062.50 | $17,437.50 | +$4,387.50 |
Each figure is the assessed value divided by 1,000 and multiplied by the rate, before exemptions and credits. These are assessed values, the number printed on a Loudon bill, not sale prices: New Hampshire towns assess as of April 1 and many sit above or below market value between revaluations, so a $300,000 assessment can belong to a house that would sell for more or less. The "2024 rate" column applies last year's $23.25 to the same assessment.
How Loudon compares in Merrimack County and the state
Among the 27 municipalities in Merrimack County, Loudon ranks 6th highest; the county median is $17.63, so Loudon sits $5.12 above it. The next higher rate in the county is Hopkinton at $23.35, and the next lower is Pembroke at $21.84. Statewide, 84% of municipalities have a lower total rate than Loudon; in 2024 it ranked 59th.
Municipalities with the closest rates anywhere in the state: Haverhill ($22.74, Grafton), Danville ($22.84, Rockingham), Raymond ($22.96, Rockingham), Piermont ($22.46, Grafton). A rate only compares bills fairly between towns that assess at a similar share of market value; the DRA's equalization ratio for each town measures that share, and the guide to assessed and market value explains how to use it.
What Loudon raises and from what base
The DRA set Loudon's 2025 rate on November 18, 2025 against a total assessed valuation of $730,216,264 including utilities, of which $18,128,200 (2.48%) is utility property. The state education rate applies only to the $712,088,064 without utilities (RSA 76:3). The total commitment, the property tax Loudon bills for the year, is $16,222,847, about $2,909 for each of the 5,576 residents counted in the 2020 census. The four rates applied to the two valuations raise $16,584,140; the commitment is $361,293 lower because the DRA's rate calculation subtracts the veterans' (war service) tax credits the town grants.
Appealing a Loudon assessment
Abatement starts with Loudon, not the state. When the final 2025 bill is mailed by December 31, 2025, the written application goes to the selectmen or assessors by March 1, 2026 (RSA 76:16, I(b)), the town decides by July 1, and an appeal to the Board of Tax and Land Appeals ($65 fee) or superior court is due by September 1, 2026. A bill mailed after December 31 moves each date to two, six and eight months after the mailing. The Board compares the assessment divided by the town's equalization ratio with the property's market value on April 1; the New Hampshire appeal page sets out the full procedure and the appeal check does that division.
Loudon property tax questions
What is the property tax rate in Loudon, NH?
Loudon's 2025 total rate is $22.75 per $1,000 of assessed value: municipal $4.46, county $2.67, local school $14.06 and state education $1.56. The Department of Revenue Administration set it on November 18, 2025.
How much is the property tax on a $300,000 home in Loudon?
A property assessed at $300,000 owes $6,825.00 for the 2025 tax year ($300,000 ÷ 1,000 × $22.75), before any exemption or credit. At the 2024 rate the same assessment owed $6,975.00.
Is Loudon's tax rate high for New Hampshire?
It ranks 36th highest of 234 municipalities. The statewide median is $16.90, so Loudon is $5.85 above it. Rates are per $1,000 of each town's own assessed value, and towns assess at different shares of market value, so the DRA's equalization ratio matters when comparing bills.
What is the deadline to appeal a Loudon property assessment?
For a final 2025 bill mailed by December 31, 2025, the written abatement application goes to the selectmen or assessors by March 1, 2026 (RSA 76:16). An appeal to the Board of Tax and Land Appeals or superior court follows by September 1, 2026 (RSA 76:16-a, 76:17).
Sources: NH Department of Revenue Administration, 2025 Municipal Tax Rates (completed as of January 23, 2026) (DRA; copy read) and NH Department of Revenue Administration, 2024 Municipal Tax Rates (completed as of June 9, 2025) (copy read); county and 2020 population from Wikipedia's list of NH municipalities. Last checked October 20, 2026. This page explains published figures; it is not tax or legal advice.