CITY REPORT NH

Cornish Flat, NH Home Safety Data by ZIP

Name: Water Quality Data for Cornish Flat, NH
Creator: ZipCheckup
License: https://creativecommons.org/licenses/by/4.0/

1 ZIP code · 0 water systems · Updated

Data: EPA SDWIS

ZIP Codes

Water Systems

N/A

ZIPs with Violations

Zone 2

Radon Risk (Moderate)

$400

Est. Remediation

Cornish Flat Water: The Quick Version

Estimated remediation: $400 per household.
CDC health risk index: 13.24 - above typical levels.

Overview

We track home safety data for 1 ZIP code in Cornish Flat, New Hampshire, covering 0 community water system serving approximately 0 people. The EPA snapshots used for this build directly map water systems to 0 of 1 ZIP codes.

EPA water-system violation data is unavailable in the dataset used for this page for the tracked ZIP codes in Cornish Flat.

Lead & Copper

Lead data: not yet available for Cornish Flat
Lead action-level status: not available

Radon Risk

Dominant radon zone: Zone 2 (Moderate Risk)

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

All ZIP Codes in Cornish Flat

03746

Data Sources

Water quality: EPA Safe Drinking Water Information System (SDWIS)
Lead/copper: EPA Lead and Copper Rule sampling data
Radon: EPA Map of Radon Zones

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

CDC Health Data for Cornish Flat

10.8%

Asthma (US: 9.8%)

11.2%

Diabetes (US: 10.4%)

15.7%

Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 10.8% ↑

Diabetes 11.2% ↑

Mental Health 15.7% ↑

Vertical line = national average. ■ Above national · ■ Below national

Deep Dive Reports

Detailed analysis for Cornish Flat, NH

🌬️

Air Quality

AQI data, wildfire smoke risk, mold risk, and health tips

Compare with Nearby Cities

1 ZIP code · 1 EPA violation

Alton Bay, NH

1 ZIP code · 1 EPA violation

Amherst, NH

1 ZIP code

Frequently Asked Questions

How much does it cost to fix water issues in Cornish Flat?

Estimated remediation costs in Cornish Flat average $400 per household, ranging from $0 to $800. Costs include filtration, pipe replacement, radon mitigation, and flood protection.

Home → Cities → New Hampshire → Cornish Flat, NH

How to cite this page

APA ZipCheckup. (2026). Cornish Flat, NH Home Safety Data by ZIP. https://zipcheckup.com/cities/nh/cornish-flat/

BibTeX

@misc{zipcheckup-cities-nh-cornish-flat,
  author = {{ZipCheckup}},
  title  = {{Cornish Flat, NH Home Safety Data by ZIP}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/nh/cornish-flat/}
}

Page version: August 2026.