https://fred.stlouisfed.org/series/MEDLISPRIPERSQUFEE10900
The median home in the Bethlehem, PA core based statistical area costs $200 per square foot in October 2024. In October 2019, it cost $120 per square foot.
I'm sure you can find homes that list for half the cost per square foot just as well as someone could find homes that list for double the cost per square foot. That's why the median is useful – and it has increased 66% over the last five years.