CITY REPORT IL

Hillside, IL Water Safety: 76/100 (2026)

1 ZIP code · 4 water systems · Updated 2026-06-03

Hillside, IL: reliable drinking water, above-average safety record, few violations.

How Hillside Compares

Hillside76/100
Illinois avg61/100
National avg67/100

Data: EPA SDWIS Last verified: 2026-06-03

1
ZIP Codes
4
Water Systems
0
ZIPs with Violations
B · 76
Avg Safety Score
Zone 2
Radon Risk (Moderate)
$234K
Median Home Value
$2,900
Est. Remediation (1.2% of home value)

What You Should Know About Hillside Water

  • Average lead level: 0.0058 mg/L.
  • Homes built before 1986: 93% — older plumbing may contain lead solder.
  • Estimated remediation: $2,900 per household.
  • CDC health risk index: 11.18.

Who Supplies Your Water in Hillside

With 3 utilities splitting service in Hillside, IL, water accountability is distributed across 4 systems on the federal record.

Westchester
Serves ~16,241 people
76
/100
Hillside
Serves ~8,200 people
76
/100
Aqua Illinois-oak Brook
Serves ~5,361 people
76
/100

Overview

We track water quality and home safety data for 1 ZIP code in Hillside, Illinois (population ~8,133), covering 4 community water systems serving approximately 35,016 people region-wide.

No EPA violations recorded across any ZIP codes in Hillside — an excellent indicator of water quality.

Home Safety Score

Average Home Safety Score for Hillside: B (76/100)

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

Hillside water systems draw from: Surface water.

Lead & Copper

  • Average lead level (90th percentile): 0.0058 mg/L (EPA action level: 0.015 mg/L)
  • 0 ZIP codes exceed the EPA lead action level

Radon Risk

Dominant radon zone: Zone 2 (Moderate Risk)

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

Areas with No Violations

ZIP Code Safety Score System Population
60162 B Hillside 8,200

All ZIP Codes in Hillside

Data Sources

Updated daily.

Health Outcomes in Hillside

9.8%
Asthma (US: 9.8%)
11.8%
Diabetes (US: 10.4%)
14.9%
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 9.8% ↓
Diabetes 11.8% ↑
Mental Health 14.9% ↑

Vertical line = national average. Above national · Below national

Housing & Infrastructure in Hillside

1950
Median Build Year
93%
Built Before 1986
52%
Built Before 1970
Galvanized Steel or Copper
Likely Pipe Material

With 93% 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

Housing age is one of the most reliable proxies for plumbing-era lead risk, because two federal milestones — the widespread use of lead pipes before 1970 and the continued use of lead solder until 1986 — define the highest-risk tiers of the residential housing stock. With a median build year of 1950, Hillside falls squarely within the older range — meaning a large fraction of the housing was built under the plumbing standards of those earlier eras. The distribution above captures where that risk concentrates, and why older neighborhoods warrant particular attention from residents concerned about tap water quality.

1950
Median Year Built
93%
Pre-1986 (Lead Paint Risk)
52%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (52%) 1970–1986 (41%) Post-1986 (7%)

Over half of homes in Hillside 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.

Cost Context: What Remediation Means for Hillside Homeowners

Within the Hillside property market, documented remediation claims a moderate slice of typical equity — real but budgetable.

Median Home Value
$233,800
Est. Remediation
$2,900
Remediation as % of home value 1.2%

Remediation costs are moderate relative to home values in Hillside. The estimated $1,800–$4,800 range is manageable for most homeowners but still worth budgeting for. Home values are 27% above the Illinois average.

Lead Exposure Risk for Children in Hillside

93%
Homes Built Before 1986
0.0058
mg/L Avg Lead (Limit: 0.015)

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.

Confirming what arrives at a specific faucet is something utility-side averages cannot do. With 93% of Hillside stock built before the lead-solder ban and citywide monitoring at or beyond the regulatory mark, a tap-level kit fits the standard diligence picture.

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

Flood & Climate Risk in Hillside

How does Hillside's flood record connect to local water quality? The NFIP documents 15 claims — enough to signal recurring events — and 100% of ZIP codes carry FEMA flood zone status. That combination places flooding in the category of factors that can periodically affect water infrastructure, even if the area isn't among the highest-exposure communities in the NFIP dataset.

15
Total FEMA Flood Claims
$51,483
Avg Claim Payout
100%
ZIPs in FEMA Flood Zones
~1
Est. Claims/Year

Hillside has a moderate flood history with 15 FEMA claims averaging $51,483 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>$2,900</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.

Frequently Asked Questions

Is the water safe to drink in Hillside, IL?
Hillside has an average water safety score of 76/100 (Grade B). No EPA violations on record. Check individual ZIP code reports for details specific to your neighborhood.
Does Hillside water have lead?
The average 90th-percentile lead level in Hillside is 0.0058 mg/L. This is below the EPA action level of 0.015 mg/L. Lead levels can vary by home — testing is recommended especially in older properties.
How does Hillside compare to Illinois average?
Hillside has an average water safety score of 76/100, which is above the Illinois state average of 61/100.
How many water systems serve Hillside?
Hillside is served by 4 public water systems across 1 ZIP code, serving approximately 8,133 people.
How much does it cost to fix water issues in Hillside?
Estimated remediation costs in Hillside average $2,900 per household, ranging from $1,800 to $4,800. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
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