Kings Park, NY Water Safety: 90/100 (2026)
1 ZIP code · 3 water systems · Updated 2026-06-03
Kings Park, NY: reliable drinking water, above-average safety record, few violations.
How Kings Park Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Kings Park Residents
- Average lead level: 0.0012 mg/L.
- Homes built before 1986: 84% — older plumbing may contain lead solder.
- Estimated remediation: $1,800 per household.
- CDC health risk index: 11.13.
Kings Park's Water Providers
Structurally, Kings Park, NY's water supply is divided. Federal data identifies 3 water systems in the area, with 3 providers serving the bulk of residential connections. These utilities operate independently, meaning rate-setting authority and EPA compliance accountability are distributed rather than centralized.
Overview
We track water quality and home safety data for 1 ZIP code in Kings Park, New York (population ~17,660), covering 3 community water systems serving approximately 1,130,222 people region-wide.
No EPA violations recorded across any ZIP codes in Kings Park — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Kings Park: A (90/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Kings Park water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0012 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 11754 | A | Smithtown Water District | 19,635 |
All ZIP Codes in Kings Park
- 11754 [A]
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
Updated daily.
Kings Park Community Health Snapshot
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Kings Park Infrastructure Age
With 84% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Heavily weighted toward older construction, Kings Park's housing stock carries a median build year of 1963. That profile puts a majority of homes in the era when lead-soldered copper plumbing was standard practice.
Over half of homes in Kings Park were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.
Source: U.S. Census Bureau ACS B25034.
How Remediation Costs Compare in Kings Park
Across Kings Park, the equity share taken up by estimated remediation is small — a favorable ratio for most property owners.
Remediation costs in Kings Park are relatively low compared to home values. The $1,200–$2,600 estimated range is a small fraction of median property value. Home values are 64% above the New York average.
Kings Park: Lead Risk & Vulnerable Populations
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
When older housing represents 84% of the local inventory or aggregate readings approach the federal action level, an in-home check becomes the standard way to translate citywide averages into the specific reality of an individual Kings Park address.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Kings Park: Flood History & Water Damage Risk
Within the NFIP's national dataset, Kings Park falls in moderate-exposure territory — 34 documented incidents spanning multiple decades, with 100% of local ZIP codes sitting inside FEMA flood boundaries. That combination warrants inclusion in any thorough local water quality review.
Kings Park has a moderate flood history with 34 FEMA claims averaging $4,196 per payout. 100% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
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. Flood damage can add significantly to the estimated <strong>$1,800</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
Deep Dive Reports
Detailed analysis for Kings Park, NY