CITY REPORT NY

East Northport, NY: 20 Violations - Home Safety 82/100

1 ZIP code · 3 water systems · Updated

ZipCheckup grade for East Northport: B.

This ZIP has a few items worth a quick check.

East Northport, NY scores in the upper band of the ZipCheckup grade.

How East Northport Compares

East Northport82/100
New York avg84/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
3
Water Systems
1
ZIPs Linked to Systems with Violations
B · 82
Avg Safety Score
Zone 3
County Radon Potential (Low)
$622K
Median Home Value
$600
Est. Remediation (0.1% of home value)

What You Should Know About East Northport Water

  • Your city's water systems recorded 20 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.0013 mg/L.
  • Homes built before 1986: 92% - older plumbing may contain lead solder.
  • Estimated remediation: $600 per household.
  • Health risk index (ZipCheckup composite of CDC data): 11.13.

Who Supplies Your Water in East Northport

Among 3 systems linked to East Northport, NY, the 3 biggest by population served appear below.

Overview

We track home safety data for 1 ZIP code in East Northport, New York (population ~29,891), covering 3 community water systems serving approximately 1,176,522 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 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 East Northport: 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

East Northport water systems draw from: Groundwater.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0013 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

1 of 1 ZIP records with known zones is 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.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Nitrate-Nitrite Inorganic 6 1
Arsenic Inorganic 2 1
Chlorite Disinfection Byproducts 2 1
Barium Inorganic 2 1
Bromate Disinfection Byproducts 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
11731 B 20 0 Suffolk County Water Authority

All ZIP Codes in East Northport

  • 11731 [B] - 20 violations

Data Sources

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

Health Outcomes in East Northport

10.2%
Asthma (US: 9.8%)
10%
Diabetes (US: 10.4%)
14.4%
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 10.2% ↑
Diabetes 10% ↓
Mental Health 14.4% ↓

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

Top Contaminants in East Northport Water

Nitrate-Nitrite 6 violations
Inorganic · EPA regulatory level for the contaminant named above: 10 mg/L
Arsenic 2 violations
Inorganic · EPA regulatory level for the contaminant named above: 0.01 mg/L
Long-term exposure above the MCL: skin damage, circulatory problems, increased cancer risk
Chlorite 2 violations
Disinfection Byproducts · EPA regulatory level for the contaminant named above: 1 mg/L
Anemia in infants and young children

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

Housing & Infrastructure in East Northport

1968
Median Build Year
92%
Built Before 1986
83%
Built Before 1970
Galvanized Steel or Copper
Likely Pipe Material

With 92% of homes built before 1986, lead solder in plumbing is a potential concern. Federal law banned lead solder in drinking-water plumbing in 1986, but many older homes retain original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

Median construction year in East Northport: 1968, set against the 1986 federal lead limits for new plumbing.

1968
Median Year Built
92%
Pre-1986 (lead solder era; lead paint banned 1978)
83%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (83%) 1970–1986 (9%) Post-1986 (8%)

Over half of homes in East Northport were built before 1986, when federal law began restricting lead solder in drinking-water plumbing. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

Cost Context: What Remediation Means for East Northport Homeowners

How large is the remediation estimate next to home prices in East Northport? Small in relative terms: it amounts to 1% of the median value or less, although the dollar figure below is still an estimate and actual costs vary by property and contractor.

Median Home Value
$622,100
Est. Remediation
$600
Remediation as % of home value 0.1%

Estimated remediation costs in East Northport 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 72% above the New York average.

Lead Exposure Risk for Children in East Northport

92%
Homes Built Before 1986
0.0013
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.

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

Historical NFIP Claim Context in East Northport

30
Total FEMA Flood Claims
$5,174
Avg Reported Sum With Payment Data
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for East Northport contains 30 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $5,174. 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 East Northport, NY

Frequently Asked Questions

What does the Home Safety Score mean for East Northport, NY?
East Northport 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. 20 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 East Northport?
EPA records list 20 EPA violations for East Northport water systems. These water-system violations are shown for 1 mapped ZIP code.
Does East Northport water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of East Northport is 0.0013 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 East Northport compare to New York average?
East Northport has an average Home Safety Score of 82/100, which is below the New York state average of 84/100 for the same model series.
How many water systems serve East Northport?
Our records map 3 water systems to 1 ZIP code in East Northport. The related population figure in our data is approximately 29,891 people; it is not a count of people served citywide.
How much does it cost to fix water issues in East Northport?
Estimated remediation cost per household in East Northport: $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). East Northport, NY: 20 Violations - Home Safety 82/100. https://zipcheckup.com/cities/ny/east-northport/
BibTeX 
@misc{zipcheckup-cities-ny-east-northport,
  author = {{ZipCheckup}},
  title  = {{East Northport, NY: 20 Violations - Home Safety 82/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ny/east-northport/}
}

Page version: October 2026.

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