Dennison, IL Home Safety Data by ZIP
1 ZIP code · 0 water systems · Updated
Data: EPA SDWIS
Key Facts for Dennison Residents
- Homes built before 1986: 28% - older plumbing may contain lead solder.
- Estimated remediation: $400 per household.
- CDC health risk index: 13.79 - above typical levels.
Overview
We track home safety data for 1 ZIP code in Dennison, Illinois, covering 0 community water system serving approximately 609 people. The EPA snapshots used for this build directly map water systems to 0 of 1 ZIP codes.
EPA water-system violation data is unavailable in the dataset used for this page for the tracked ZIP codes in Dennison.
Lead & Copper
- Lead data: not yet available for Dennison
- Lead action-level status: not available
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
All ZIP Codes in Dennison
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.
Dennison Community Health Snapshot
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Dennison Infrastructure Age
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
Copper plumbing joined with lead solder was standard practice through the mid-1980s - a design choice that federal regulators prohibited in 1986. Dennison's residential inventory, centered around a median build year of 2008, is weighted toward the post-prohibition era. That context is relevant because the primary plumbing risk in older homes comes not from the municipal water supply but from what happens as water moves through lead-jointed pipes inside the structure - an exposure pathway that newer homes mostly avoid.
Most homes in Dennison were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
How Remediation Costs Compare in Dennison
Across Dennison, the equity share taken up by estimated remediation is small - a favorable ratio for most property owners.
Remediation costs in Dennison are relatively low compared to home values. The $0–$800 estimated range is a small fraction of median property value. Home values are 20% below the Illinois average.
Dennison: Lead Risk & Vulnerable Populations
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.
28% of housing in Dennison predates the federal action against lead solder - a contained share - and aggregate readings stay beneath the regulatory benchmark. Lead therefore sits in a quiet position on the local water-quality picture, with single-home draws as the standard tool for confirming any one address.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Dennison, IL