Farmingdale, NY Water Safety: 97/100 (2026)
4 ZIP codes · 6 water systems · Updated 2026-06-03
Farmingdale's tap water quality puts it in NY's upper tier — health-based violations are rare and the compliance record is consistently above average.
How Farmingdale Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Farmingdale Water
- Average lead level: 0.001 mg/L.
- Estimated remediation: $1,800 per household.
- CDC health risk index: 10.69.
Who Supplies Your Water in Farmingdale
Farmingdale, NY is covered by 3 major water utilities out of 6 federally tracked systems, each managing its own pipes, treatment processes, and EPA filings. What a household gets from the tap depends on which provider's system serves that address.
Overview
We track water quality and home safety data for 4 ZIP codes in Farmingdale, New York (population ~32,778), covering 6 community water systems serving approximately 1,302,204 people region-wide.
No EPA violations recorded across any ZIP codes in Farmingdale — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Farmingdale: A (97/100)
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
Farmingdale water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0010 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)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 4 ZIP codes
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 11735 | A | South Farmingdale Water District | 44,700 |
| 11736 | A | South Farmingdale Water District | 44,700 |
| 11737 | A | South Farmingdale Water District | 44,700 |
| 11774 | A | South Farmingdale Water District | 44,700 |
All ZIP Codes in Farmingdale
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.
Health Outcomes in Farmingdale
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
Cost Context: What Remediation Means for Farmingdale Homeowners
In Farmingdale, the equity impact of remediation is proportionally small — not the kind of financial commitment that rises to the level of a genuine planning constraint, but a minor share of what most properties here are worth.
Remediation costs in Farmingdale 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 58% above the New York average.
Lead Exposure Risk for Children in Farmingdale
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.
Lead risk in Farmingdale appears low overall, but individual homes may differ. 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.
Flood & Climate Risk in Farmingdale
The National Flood Insurance Program captures decades of claims at the local level, building a record of cumulative community flood exposure. For Farmingdale, that record documents 27 claims and 25% of ZIP codes inside FEMA-designated flood zones. What makes those numbers relevant to water quality is the set of mechanisms flooding activates: heavy precipitation that floods treatment intake zones can introduce contaminants upstream of normal filtration; well casings in low-lying areas can be infiltrated by floodwaters carrying bacteria, sediment, and chemical residue; and distribution system pressure changes during flooding can create backflow conditions. These effects become more probable as flood frequency and magnitude increase — and the NFIP record indicates both are meaningful factors locally.
Farmingdale has a moderate flood history with 27 FEMA claims averaging $2,816 per payout. 25% 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 Farmingdale, NY