Every home in Allegheny County, by lead-paint risk.

This is the lead-risk map taken all the way down to individual homes, for all of Allegheny County. Each dot is one real property, colored by the decade it was built, because older homes are far more likely to contain lead paint. Scroll to zoom from the whole county down to a single street. A lead program matches this layer against the families it already serves and gets back a ranked list of which homes to check first.

441,731
homes mapped across Allegheny County
37%
built before 1940 (very likely lead paint)
65%
built before 1960
$0
data cost, public county records
All of Allegheny County. Scroll or use + / − to zoom, drag to pan, hover any home. Red = built before 1940.
Loading 441,731 homes…
pre-1940 1940-1959 1960-1977 1978+
PhiladelphiaLos AngelesFor lead programs
Built from the Allegheny County parcel service and the Western Pennsylvania Regional Data Center property assessment, with year built joined to each parcel by its parcel ID. Lead-paint-by-era rates from the HUD National Survey of Lead and Allergens in Housing. A screening tool that shows where to look first, not a diagnosis of any specific home. Fluoro-Spec Inc. · eric@fluorospect.com · 631-461-1838. See Safety & Compliance.