Lead Paint Risk in Mercer County, Illinois

77.6%Pre-1978 Housing
5,650Pre-1978 Units
7,279Total Housing Units
4Census Tracts

How to Interpret This

This is an area-level screening signal based on Census housing-age data. It does not confirm lead paint in any specific home. Homes built before 1978 may contain lead-based paint, and certified inspection or testing is the only way to confirm a property-level hazard.

Reporter / Resident Story Kit

  • 5,650 housing units in Mercer County were built before 1978.
  • The county's pre-1978 housing share is 77.6%, compared with the state rate of 64.1%.
  • Local questions: Which neighborhoods have the oldest housing stock? Are lead-safe renovation resources available? Do renters and families with young children know how to request testing?

Highest-Risk Census Tracts

Individual census tracts ranked by pre-1978 housing percentage. Showing the top 4 of 4 tracts; download the full county tract CSV.

TractPre-1978TotalRisk Rate1970s1960s1950s1940s≤1939
Census Tract 4041,4821,82781.1%320132142164724
Census Tract 4031,4361,77880.8%235244209145603
Census Tract 4021,2791,66676.8%24610812985711
Census Tract 4011,4532,00872.4%47527319081434