Oak Park, IL: 1 Health Violation - Home Safety 72/100
4 ZIP codes · 4 water systems · Updated
ZipCheckup grade for Oak Park: B.
This ZIP has a few items worth a quick check.
In the dataset behind this page, Oak Park, IL receives one of the two highest grades; read the compliance history system by system for details.
How Oak Park Compares
Data: EPA SDWIS
Key Facts for Oak Park Residents
- Your city's water systems recorded 13 violations since 2021.
- Average of reported 90th-percentile lead results: 0.0057 mg/L.
- Homes built before 1986: 79% - older plumbing may contain lead solder.
- Estimated remediation: $300 per household.
- Health risk index (ZipCheckup composite of CDC data): 11.18.
Overview
We track home safety data for 4 ZIP codes in Oak Park, Illinois (population ~53,315), covering 4 community water systems serving approximately 205,115 people region-wide. The EPA snapshots used for this build directly map water systems to 3 of 4 ZIP codes.
3 of 3 ZIP codes with a reported violation count in the available EPA record (100%) have recorded EPA violations. 1 health-based violation appear in the available health breakdown.
Home Safety Score
Average Home Safety Score for Oak Park: B (72/100)
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
Oak Park water systems draw from: Surface water.
Lead & Copper
- Average of reported 90th-percentile lead results: 0.0057 mg/L (EPA action level: 0.015 mg/L)
- 0 of 3 ZIP codes with known status exceed the EPA lead action level
Radon Risk
4 of 4 ZIP records with known zones are 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 |
|---|---|---|---|
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 4 | 3 |
| Lead and Copper Rule | Treatment Technique | 4 | 1 |
| Lead and Copper Rule Revisions | Treatment Technique | 4 | 1 |
| Consumer Confidence Rule | Reporting | 4 | 1 |
| Public Notice Rule | Reporting | 4 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 60304 | C | 12 | 1 | Oak Park |
| 60301 | B | 1 | 0 | Oak Park |
| 60302 | B | 1 | 0 | Oak Park |
All ZIP Codes in Oak Park
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
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
Oak Park Community Health Snapshot
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
Vertical line = national average. ■ Above national · ■ Below national
What's in Oak Park's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Oak Park Infrastructure Age
With 79% 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
Pre-1986 homes make up a large part of Oak Park's housing; median build year 1928.
Over half of homes in Oak Park were built before 1986, when federal law began restricting lead solder in drinking-water plumbing. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.
Source: U.S. Census Bureau ACS B25034.
How Remediation Costs Compare in Oak Park
The remediation-to-value ratio for Oak Park sits at the bottom of the scale.
Estimated remediation costs in Oak Park can be compared with local home values. The $150–$600 estimated range can be set against the median property value; actual costs vary by home. Home values are 145% above the Illinois average.
Oak Park: Lead Risk & Vulnerable Populations
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.
Oak Park: NFIP Claim Records and Water-Quality Context
Historical NFIP data for Oak Park contains 3 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $2,136. 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. The $300 remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.
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.
Deep Dive Reports
Detailed analysis for Oak Park, IL