CITY REPORT NY

Great Neck, NY Home Safety: Home Safety 87/100

7 ZIP codes · 2 water systems · Updated

ZipCheckup grade for Great Neck: A.

Checked records flag no major concern; missing data is unknown.

Great Neck, NY carries a grade in ZipCheckup's upper tier; any health-based violations on record should be checked per water system.

How Great Neck Compares

Great Neck87/100
New York avg84/100
National avg73/100

Data: EPA SDWIS

7
ZIP Codes
2
Water Systems
0
ZIPs Linked to Systems with Violations
A · 87
Avg Safety Score
Zone 3
County Radon Potential (Low)
$1.2M
Median Home Value
$600
Est. Remediation (0.1% of home value)

What You Should Know About Great Neck Water

  • Average of reported 90th-percentile lead results: 0.0027 mg/L.
  • Estimated remediation: $600 per household.
  • Health risk index (ZipCheckup composite of CDC data): 10.69.

Who Supplies Your Water in Great Neck

Because each listed system has its own federal record, violations at one of the 2 shown below do not apply to the others among the 2 tied to Great Neck, NY.

Overview

We track home safety data for 7 ZIP codes in Great Neck, New York (population ~44,105), covering 2 community water systems serving approximately 74,400 people region-wide. The EPA snapshots used for this build directly map water systems to 4 of 7 ZIP codes.

The available EPA record reports 0 violations for 4 ZIP codes with a reported violation count.

Home Safety Score

Average Home Safety Score for Great Neck: A (87/100)

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

Great Neck water systems draw from: Groundwater.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0027 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 4 ZIP codes with known status exceed the EPA lead action level

Radon Risk

7 of 7 ZIP records with known zones are in EPA Radon Zone 3.

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

Areas with No Violations

ZIP Code Safety Score System Population
11020 B Manhasset Lakeville Water District 43,000
11021 B Water Authority of Great Neck North 31,400
11023 B Water Authority of Great Neck North 31,400
11024 A Water Authority of Great Neck North 31,400

All ZIP Codes in Great Neck

Data Sources

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

Health Outcomes in Great Neck

9.6%
Asthma (US: 9.8%)
10.1%
Diabetes (US: 10.4%)
13.2%
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 9.6% ↓
Diabetes 10.1% ↓
Mental Health 13.2% ↓

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

Cost Context: What Remediation Means for Great Neck Homeowners

Low tier for Great Neck: remediation estimated at up to 1% of what homes are worth.

Median Home Value
$1.2M
Est. Remediation
$600
Remediation as % of home value 0.1%

Estimated remediation costs in Great Neck can be compared with local home values. The $400–$800 estimated range can be set against the median property value; actual costs vary by home. Home values are 219% above the New York average.

Lead Exposure Risk for Children in Great Neck

0.0027
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.

Available area-level lead records for Great Neck do not determine the lead level at an individual tap. Testing is the only way to confirm your water's lead content.

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

Historical NFIP Claim Context in Great Neck

466
Total FEMA Flood Claims
$22,831
Avg Reported Sum With Payment Data
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Great Neck contains 466 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $22,831. Among ZIP codes with claim records, 0% 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 $600 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.

Deep Dive Reports

Detailed analysis for Great Neck, NY

Frequently Asked Questions

What does the Home Safety Score mean for Great Neck, NY?
Great Neck has an average Home Safety Score of 87/100 (Grade A) 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. The available EPA record reports no violations for ZIP codes with reported counts. Check individual ZIP code reports for component details.
Does Great Neck water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Great Neck is 0.0027 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average. EPA's health goal for lead is zero. Lead levels can vary by home - testing is recommended especially in older properties.
How does Great Neck compare to New York average?
Great Neck has an average Home Safety Score of 87/100, which is at or above the New York state average of 84/100 for the same model series.
How many water systems serve Great Neck?
Our records map 2 water systems to 7 ZIP codes in Great Neck. The related population figure in our data is approximately 44,105 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Great Neck?
Estimated remediation cost per household in Great Neck: $600; modeled range $400 to $800. 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). Great Neck, NY Home Safety: Home Safety 87/100. https://zipcheckup.com/cities/ny/great-neck/
BibTeX 
@misc{zipcheckup-cities-ny-great-neck,
  author = {{ZipCheckup}},
  title  = {{Great Neck, NY Home Safety: Home Safety 87/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ny/great-neck/}
}

Page version: October 2026.

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