CITY REPORT IL

Island Lake, IL: 27 Violations - Home Safety 73/100

1 ZIP code · 5 water systems · Updated

ZipCheckup grade for Island Lake: B.

This ZIP has a few items worth a quick check.

Looking at federal compliance records for Island Lake, IL: the city earns a grade in the top two bands here, and each serving system's violation history can be reviewed individually for what lies behind it.

How Island Lake Compares

Island Lake73/100
Illinois avg68/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
5
Water Systems
1
ZIPs Linked to Systems with Violations
B · 73
Avg Safety Score
Zone 2
County Radon Potential (Moderate)
$244K
Median Home Value

Key Facts for Island Lake Residents

  • Your city's water systems recorded 27 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.0096 mg/L.
  • Homes built before 1986: 43% - older plumbing may contain lead solder.
  • Health risk index (ZipCheckup composite of CDC data): 11.76.

Island Lake's Water Providers

Service in Island Lake, IL can differ by address: 5 water systems are tied to the area in federal records, and the 3 largest are listed with their violation records.

  • Wauconda
    Serves ~15,349 people 1 violation
    B
  • Island Lake
    Serves ~8,066 people 1 violation
    B
  • Volo
    Serves ~6,629 people 21 violations
    B

Overview

We track home safety data for 1 ZIP code in Island Lake, Illinois (population ~8,630), covering 5 community water systems serving approximately 33,249 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 Island Lake: B (73/100)

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

Island Lake water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0096 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.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Oxamyl (Vydate) Organic 8 1
Carbofuran Organic 8 1
Benzo(a)pyrene Organic 8 1
Chlordane Organic 8 1
Mercury Inorganic 4 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
60042 B 27 0 Island Lake

All ZIP Codes in Island Lake

  • 60042 [B] - 27 violations

Data Sources

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

Island Lake Community Health Snapshot

9.6%
Asthma (US: 9.8%)
10.5%
Diabetes (US: 10.4%)
15.4%
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 9.6% ↓
Diabetes 10.5% ↑
Mental Health 15.4% ↑

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

What's in Island Lake's Water?

Oxamyl (Vydate) 8 violations
Organic
Carbofuran 8 violations
Organic
Benzo(a)pyrene 8 violations
Organic

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

Island Lake Infrastructure Age

1981
Median Build Year
43%
Built Before 1986
21%
Built Before 1970
Copper
Likely Pipe Material

With 43% 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

Over the decades, Island Lake accumulated housing from multiple construction periods. The median build year of 1981 can be read against 1986, when lead solder in plumbing became federally prohibited - a regulatory line, not a safety line, and individual homes on either side of it can have different plumbing.

1981
Median Year Built
43%
Pre-1986 (lead solder era; lead paint banned 1978)
21%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (21%) 1970–1986 (22%) Post-1986 (57%)

Most homes in Island Lake 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.

Island Lake: Lead Risk & Vulnerable Populations

43%
Homes Built Before 1986
0.0096
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.

Island Lake: NFIP Claim Records and Water-Quality Context

3
Total FEMA Flood Claims
$743
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Island Lake contains 3 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $743. 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 Island Lake, IL?
Island Lake has an average Home Safety Score of 73/100 (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. 27 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 Island Lake?
EPA records list 27 EPA violations for Island Lake water systems. These water-system violations are shown for 1 mapped ZIP code.
Does Island Lake water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Island Lake is 0.0096 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 Island Lake compare to Illinois average?
Island Lake has an average Home Safety Score of 73/100, which is at or above the Illinois state average of 68/100 for the same model series.
How many water systems serve Island Lake?
Our records map 5 water systems to 1 ZIP code in Island Lake. The related population figure in our data is approximately 8,630 people; it is not a count of people served citywide.
Home → Cities → Illinois → Island Lake, IL

How to cite this page

APA ZipCheckup. (2026). Island Lake, IL: 27 Violations - Home Safety 73/100. https://zipcheckup.com/cities/il/island-lake/
BibTeX
@misc{zipcheckup-cities-il-island-lake,
  author = {{ZipCheckup}},
  title  = {{Island Lake, IL: 27 Violations - Home Safety 73/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/il/island-lake/}
}

Page version: October 2026.

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