CITY REPORT NH

Laconia, NH: Lead Above EPA Action Level - Home Safety 82/100

2 ZIP codes · 4 water systems · Updated

ZipCheckup grade for Laconia: B.

This ZIP has a few items worth a quick check.

Laconia, NH: a top-two-band grade.

How Laconia Compares

Laconia82/100
New Hampshire avg74/100
National avg73/100

Data: EPA SDWIS

2
ZIP Codes
4
Water Systems
1
ZIPs Linked to Systems with Violations
B · 82
Avg Safety Score
1
ZIPs Mapped to a System Above the Lead Action Level
Zone 2
County Radon Potential (Moderate)
$308K
Median Home Value
$4,140
Est. Remediation (1.4% of home value)

Key Facts for Laconia Residents

  • Your city's water systems recorded 5 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.036 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average.
  • Estimated remediation: $4,140 per household.
  • Health risk index (ZipCheckup composite of CDC data): 12.77.

Laconia's Water Providers

Among 4 systems linked to Laconia, NH, the 3 biggest by population served appear below.

Overview

We track home safety data for 2 ZIP codes in Laconia, New Hampshire, covering 4 community water systems serving approximately 17,006 people. The EPA snapshots used for this build directly map water systems to 1 of 2 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.

Home Safety Score

Average Home Safety Score for Laconia: B (82/100)

Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:

Factor What It Measures
Water Quality EPA violations and compliance history
PFAS MCL Screen UCMR 5 testing against the covered federal MCLs
Radon Risk EPA radon zone classification
Annual AQI EPA AirData county-year median with at least 90 observed days

Water Sources

Laconia water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0360 mg/L (exceeds EPA action level) (EPA action level: 0.015 mg/L)
  • 1 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

2 of 2 ZIP records with known zones are in EPA Radon Zone 2.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Revised Total Coliform Rule Microbiological 4 1
Haloacetic Acids (HAA5) Disinfection Byproducts 2 1
Total Trihalomethanes (TTHM) Disinfection Byproducts 2 1
Chlorine Disinfectant 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
03246 B 5 0 Laconia Water Works

All ZIP Codes in Laconia

Data Sources

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

Laconia Community Health Snapshot

10.3%
Asthma (US: 9.8%)
10.5%
Diabetes (US: 10.4%)
15.1%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.

Compared to National Average

Asthma 10.3% ↑
Diabetes 10.5% ↑
Mental Health 15.1% ↑

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

What's in Laconia's Water?

Revised Total Coliform Rule 4 violations
Microbiological
Indicates possible bacterial contamination
Haloacetic Acids (HAA5) 2 violations
Disinfection Byproducts · EPA regulatory level for the contaminant named above: 0.06 mg/L
Increased cancer risk with long-term exposure above the MCL
Total Trihalomethanes (TTHM) 2 violations
Disinfection Byproducts · EPA regulatory level for the contaminant named above: 0.08 mg/L
Increased cancer risk with long-term exposure above the MCL

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

How Remediation Costs Compare in Laconia

In Laconia, estimated remediation lands between the 1% and 2% cutoffs as a share of what the median home is worth.

Median Home Value
$307,800
Est. Remediation
$4,140
Remediation as % of home value 1.4%

Estimated remediation costs in Laconia can be compared with local home values. The estimated $2,760–$5,520 range is a planning estimate; get a property-specific quote and check it against your budget. Home values are 15% below the New Hampshire average.

Laconia: Lead Risk & Vulnerable Populations

1 of 2
ZIPs Mapped to a System Above the Lead Action Level
0.036
mg/L average of reported water-system 90th-percentile lead results (the 0.015 action level applies to each system's result, not to this average)

Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

If you have young children or are pregnant, consider testing your home's water - especially if your home was built before 1986.

1 ZIP code (50% of the city's ZIP records) is served by a water system whose 90th-percentile lead result exceeds the EPA action level of 0.015 mg/L.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Laconia: NFIP Claim Records and Water-Quality Context

37
Total FEMA Flood Claims
$11,177
Avg Reported Sum With Payment Data
50%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Laconia contains 37 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $11,177. Among ZIP codes with claim records, 50% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The $4,140 remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.

Frequently Asked Questions

What does the Home Safety Score mean for Laconia, NH?
Laconia has an average Home Safety Score of 82/100 (Grade B) under ZipCheckup model 4.0.0, an area-level model that draws on EPA water compliance records, PFAS screening, EPA radon zones, and annual EPA air quality data; see the methodology page for how inputs and coverage are handled. 5 violations appear in EPA records for water systems mapped to these ZIP codes. Check individual ZIP code reports for component details.
How many violations are on record for water systems serving Laconia?
EPA records list 5 EPA violations for Laconia water systems. These water-system violations are shown for 2 mapped ZIP codes.
Does Laconia water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Laconia is 0.036 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average. Lead levels can vary by home - testing is recommended especially in older properties.
How does Laconia compare to New Hampshire average?
Laconia has an average Home Safety Score of 82/100, which is at or above the New Hampshire state average of 74/100 for the same model series.
How many water systems serve Laconia?
Our records map 4 water systems to 2 ZIP codes in Laconia. The related population figure in our data is approximately 17,006 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Laconia?
Estimated remediation cost per household in Laconia: $4,140; modeled range $2,760 to $5,520. Estimated costs may include filtration, pipe replacement, radon mitigation, or flood protection where applicable.
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How to cite this page

APA ZipCheckup. (2026). Laconia, NH: Lead Above EPA Action Level - Home Safety 82/100. https://zipcheckup.com/cities/nh/laconia/
BibTeX
@misc{zipcheckup-cities-nh-laconia,
  author = {{ZipCheckup}},
  title  = {{Laconia, NH: Lead Above EPA Action Level - Home Safety 82/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/nh/laconia/}
}

Page version: October 2026.

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