The median for Cambria County did decrease in 2018 by $844 in 2018 while the state and US medians increased by $1,786 and $1,601 respectively. The PA and US increases were outside their margins of error while Johnstown's and Cambria's were not.
On Christmas Eve PBS Frontline rebroadcast a documentary on the effect of poverty on children in the US. It's not just a Johnstown problem. Unfortunately they do not allow me to embed it here but you can watch it at the link here. Merry Christmas to all.