New Hampshire Home Affordability: $339K Median + Remediation Costs
Median: $338,700 · Remediation: $1,049-$3,093 · 282 ZIP codes · Updated 2026-06-27
Data: U.S. Census Bureau ACS, EPA, FEMA Last verified: 2026-06-27
ZipCheckup tracks home-affordability and environmental-remediation data for 282 ZIP codes in New Hampshire; the median home value is $338,700. Estimated water and environmental remediation costs range from $1,049 to $3,093, with a typical mid-range of $1,949. The remediation-to-home-value ratio is 0.6%, a measure of financial exposure for buyers.
City Water Quality Map: New Hampshire
Each circle represents a city. Size indicates population, color indicates water quality grade. Tap a circle for details.
Remediation Cost Overview
Cost ranges are estimates based on national averages. Actual costs vary by location, contractor, and scope of work. Get 3 quotes before proceeding.
Remediation Cost Breakdown
Average remediation cost by component in New Hampshire.
Cost estimates based on EPA, FEMA, and industry data. Actual costs vary by location and scope. Get multiple quotes.
Most Affordable Cities in New Hampshire
| # | City | Median Home Value | Population | |
|---|---|---|---|---|
| 1 | Berlin | $113,500 | 9,575 | View → |
| 2 | Groveton | $117,000 | 2,450 | View → |
| 3 | Gorham | $155,700 | 2,685 | View → |
| 4 | North Stratford | $169,600 | 428 | View → |
| 5 | Claremont | $172,700 | 9,000 | View → |
| 6 | Charlestown | $181,500 | 3,138 | View → |
| 7 | Hinsdale | $181,800 | 3,400 | View → |
| 8 | Colebrook | $187,400 | 1,300 | View → |
| 9 | North Walpole | $188,400 | 1,057 | View → |
| 10 | Ashland | $188,600 | 2,073 | View → |
Most Expensive Cities in New Hampshire
| # | City | Median Home Value | Population |
|---|---|---|---|
| 1 | New Castle | $1,612,700 | 910 |
| 2 | Rye Beach | $1,504,200 | 4,300 |
| 3 | Rye | $927,600 | 4,300 |
| 4 | Etna | $797,600 | 8,500 |
| 5 | Hanover | $744,200 | 8,500 |
| 6 | Windham | $684,700 | 1,625 |
| 7 | Jackson | $672,500 | 975 |
| 8 | Hampton Falls | $664,900 | 100 |
| 9 | Lyme | $651,400 | 364 |
| 10 | Portsmouth | $647,500 | 44,142 |
Home Affordability Overview
The median home value across 239 ZIP codes in New Hampshire is $339K, ranging from $114K to $1.6M.
Beyond purchase price, homeowners should budget for safety remediation. Average remediation costs in New Hampshire range from $1K (basic) to $3K (comprehensive), with a mid-range estimate of $2K.
Equity Trap Analysis
An "equity trap" occurs when remediation costs consume a disproportionate share of home equity, making it difficult to sell or refinance without a loss.
In New Hampshire, the average remediation cost represents 0.6% of the median home value. This ratio is within manageable range for most homeowners, though individual ZIP codes may vary significantly.
The average equity trap ratio across New Hampshire is 0.64%. ZIP codes with ratios above 10% represent areas where remediation costs may significantly impact home equity.
Remediation Cost Breakdown
Average cost per remediation component in New Hampshire:
| Component | Average Cost | Description |
|---|---|---|
| lead | $309 | Lead service line replacement and pipe remediation |
| radon | $502 | Radon mitigation system installation |
| filtration | $131 | Whole-house or point-of-use water filtration |
| flood insurance | $946 | Annual flood insurance premium (NFIP) |
| pfas | $61 | PFAS treatment and filtration system |
Cost ranges are estimates based on national averages. Actual costs vary by location, contractor, and scope of work. Get 3 quotes before proceeding.
Most Affordable Cities
| Rank | City | Median Home Value | Population |
|---|---|---|---|
| 1 | Berlin | $114K | 9,575 |
| 2 | Groveton | $117K | 2,450 |
| 3 | Gorham | $156K | 2,685 |
| 4 | North Stratford | $170K | 428 |
| 5 | Claremont | $173K | 9,000 |
| 6 | Charlestown | $182K | 3,138 |
| 7 | Hinsdale | $182K | 3,400 |
| 8 | Colebrook | $187K | 1,300 |
| 9 | North Walpole | $188K | 1,057 |
| 10 | Ashland | $189K | 2,073 |
Most Expensive Cities
| Rank | City | Median Home Value | Population |
|---|---|---|---|
| 1 | New Castle | $1.6M | 910 |
| 2 | Rye Beach | $1.5M | 4,300 |
| 3 | Rye | $928K | 4,300 |
| 4 | Etna | $798K | 8,500 |
| 5 | Hanover | $744K | 8,500 |
| 6 | Windham | $685K | 1,625 |
| 7 | Jackson | $673K | 975 |
| 8 | Hampton Falls | $665K | 100 |
| 9 | Lyme | $651K | 364 |
| 10 | Portsmouth | $648K | 44,142 |
What Homebuyers Should Budget For
When purchasing a home in New Hampshire, consider these potential safety-related expenses beyond the purchase price:
- Water testing - $150-$400 for comprehensive lab analysis
- Lead inspection - $300-$500 for paint and water testing
- Radon test - $150-$250 for professional testing
- Flood insurance - $700-$1,500/year if in a flood zone
- Water filtration - $200-$3,000 depending on system type
- Lead pipe replacement - $3,000-$15,000 for service line
- Radon mitigation - $800-$2,500 for sub-slab depressurization
Cost ranges are estimates based on national averages. Actual costs vary by location, contractor, and scope of work. Get 3 quotes before proceeding.
Data Sources
- Home values: U.S. Census Bureau American Community Survey (B25077)
- Remediation costs: National average estimates from contractor surveys and industry data
- Flood insurance: FEMA National Flood Insurance Program
Updated daily.
Buying a home in New Hampshire?
Remediation costs vary widely by ZIP code. Check your specific area to understand what you might need to budget beyond the purchase price.
Compare ZIP Codes →Frequently Asked Questions
What is the median home value in New Hampshire?
The median home value across 239 ZIP codes in New Hampshire is $339K, ranging from $114K to $1.6M. Values vary significantly by county and city.
How much does home remediation cost in New Hampshire?
Average home remediation costs in New Hampshire range from $1K (basic) to $3K (comprehensive). The mid-range estimate is $2K. Actual costs vary by location, condition, and scope of work.
What is an equity trap in home safety?
An equity trap occurs when remediation costs consume a disproportionate share of home equity. In New Hampshire, the average mid-range remediation cost ($2K) represents 0.6% of the median home value ($339K). Potential remediation costs are a factor in purchase decisions.
What home safety issues should I budget for in New Hampshire?
Common remediation needs include lead pipe replacement, water filtration systems, radon mitigation, flood insurance, and PFAS treatment. Costs vary by ZIP code - the report for your specific area provides a personalized cost estimate.
How do remediation costs compare to home values in New Hampshire?
At a median home value of $339K and mid-range remediation cost of $2K, remediation represents approximately 0.6% of home value in New Hampshire. This ratio varies widely by ZIP code.