CITY REPORT DE

Nassau, DE Water Safety: 88/100 (2026)

1 ZIP code · 1 water system · Updated 2026-07-19

ZipCheckup grade for Nassau: A.

No federal data flags a major home-safety concern for this ZIP.

Tap water monitoring data for Nassau shows a consistently clean picture in DE - few violations on record, compliance well above the median.

How Nassau Compares

Nassau88/100
Delaware avg81/100
National avg67/100

Data: EPA SDWIS Last verified: 2026-07-19

1
ZIP Codes
1
Water Systems
0
ZIPs with Violations
A · 88
Avg Safety Score
Zone 3
Radon Risk (Low)
$600
Est. Remediation

What You Should Know About Nassau Water

  • Estimated remediation: $600 per household.
  • CDC health risk index: 14.77 - above typical levels.

Who Supplies Your Water in Nassau

For most households in Nassau, DE, tap water comes from one provider - the utility that controls the local distribution system out of 1 tracked in federal record.

Overview

We track water quality and home safety data for 1 ZIP code in Nassau, Delaware, covering 1 community water system serving approximately 66 people.

No EPA violations are recorded for the tracked water systems in Nassau as of the latest reporting period.

Home Safety Score

Average Home Safety Score for Nassau: A (88/100)

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

Nassau water systems draw from: Groundwater.

Lead & Copper

  • Lead data: not yet available for Nassau
  • 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
19969 A Eds Mobile Home Park 66

All ZIP Codes in Nassau

Data Sources

Updated daily.

Health Outcomes in Nassau

10.5%
Asthma (US: 9.8%)
14.2%
Diabetes (US: 10.4%)
13.8%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 10.5% ↑
Diabetes 14.2% ↑
Mental Health 13.8% ↓

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

Deep Dive Reports

Detailed analysis for Nassau, DE

Frequently Asked Questions

Is the water safe to drink in Nassau, DE?
Nassau has an average water safety score of 88/100 (Grade A). No EPA violations on record. Check individual ZIP code reports for details specific to your neighborhood.
How does Nassau compare to Delaware average?
Nassau has an average water safety score of 88/100, which is above the Delaware state average of 81/100.
How many water systems serve Nassau?
Nassau is served by 1 public water system across 1 ZIP code, serving approximately 66 people.
How much does it cost to fix water issues in Nassau?
Estimated remediation costs in Nassau average $600 per household, ranging from $400 to $800. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
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How to cite this page

APA ZipCheckup. (2026). Nassau, DE Water Safety: 88/100 (2026). https://zipcheckup.com/cities/de/nassau/
BibTeX 
@misc{zipcheckup-cities-de-nassau,
  author = {{ZipCheckup}},
  title  = {{Nassau, DE Water Safety: 88/100 (2026)}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/de/nassau/}
}

Data as of July 2026.

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