Housing Inventory: Median Days on Market in Butler County, PA was 45.00000 Level in April of 2026, according to the United States Federal Reserve. Historically, Housing Inventory: Median Days on Market in Butler County, PA reached a record high of 123.00000 in January of 2017 and a record low of 33.00000 in April of 2022. Trading Economics provides the current actual value, an historical data chart and related indicators for Housing Inventory: Median Days on Market in Butler County, PA - last updated from the United States Federal Reserve on May of 2026.