CITY REPORT DE

Middletown, DE Home Safety: Home Safety 83/100

1 ZIP code · 5 water systems · Updated

ZipCheckup grade for Middletown: B.

This ZIP has a few items worth a quick check.

Middletown, DE: a top-two-band grade.

How Middletown Compares

Middletown83/100
Delaware avg81/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
5
Water Systems
0
ZIPs Linked to Systems with Violations
B · 83
Avg Safety Score
Zone 2
County Radon Potential (Moderate)
$445K
Median Home Value

Middletown Water: The Quick Version

  • Average of reported 90th-percentile lead results: 0.0015 mg/L.
  • Homes built before 1986: 13% - older plumbing may contain lead solder.
  • Health risk index (ZipCheckup composite of CDC data): 12.25.

Water Systems Serving Middletown

The 3 largest of 5 systems connected with Middletown, DE are listed below.

Overview

We track home safety data for 1 ZIP code in Middletown, Delaware (population ~50,542), covering 5 community water systems serving approximately 261,591 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

The available EPA record reports 0 violations for 1 ZIP code with a reported violation count.

Home Safety Score

Average Home Safety Score for Middletown: B (83/100)

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

Middletown water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0015 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 2.

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
19709 B Artesian Water Company 231,114

All ZIP Codes in Middletown

Data Sources

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

CDC Health Data for Middletown

10.4%
Asthma (US: 9.8%)
12.2%
Diabetes (US: 10.4%)
15.5%
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 10.4% ↑
Diabetes 12.2% ↑
Mental Health 15.5% ↑

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

How Old Is Middletown's Housing Stock?

2005
Median Build Year
13%
Built Before 1986
6%
Built Before 1970
PEX or Copper
Likely Pipe Material

Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.

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

Housing Age Profile

Construction dates in Middletown center on a median of 2005, and the Census figures behind it describe when homes were built, not what materials they contain.

2005
Median Year Built
13%
Pre-1986 (lead solder era; lead paint banned 1978)
6%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (6%) 1970–1986 (7%) Post-1986 (87%)

Most homes in Middletown were built after 1986; lead exposure at a tap still depends on its service line and plumbing. Older homes should still be tested.

Source: U.S. Census Bureau ACS B25034.

Protecting Children from Lead in Middletown

13%
Homes Built Before 1986
0.0015
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.

No safe blood lead level in children has been identified, according to CDC, so an area average under 0.010 mg/L does not rule out exposure at home. In Middletown, 13% of homes were built before 1986.

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

Historical Flood-Claim Evidence for Middletown

78
Total FEMA Flood Claims
$9,409
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Middletown contains 78 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $9,409. Among ZIP codes with claim records, 100% 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.

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.

Frequently Asked Questions

What does the Home Safety Score mean for Middletown, DE?
Middletown has an average Home Safety Score of 83/100 (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. The available EPA record reports no violations for ZIP codes with reported counts. Check individual ZIP code reports for component details.
Does Middletown water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Middletown is 0.0015 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 Middletown compare to Delaware average?
Middletown has an average Home Safety Score of 83/100, which is at or above the Delaware state average of 81/100 for the same model series.
How many water systems serve Middletown?
Our records map 5 water systems to 1 ZIP code in Middletown. The related population figure in our data is approximately 50,542 people; it is not a count of people served citywide.
Home → Cities → Delaware → Middletown, DE

How to cite this page

APA ZipCheckup. (2026). Middletown, DE Home Safety: Home Safety 83/100. https://zipcheckup.com/cities/de/middletown/
BibTeX
@misc{zipcheckup-cities-de-middletown,
  author = {{ZipCheckup}},
  title  = {{Middletown, DE Home Safety: Home Safety 83/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/de/middletown/}
}

Page version: October 2026.

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