population decline new castle pa
- New Castle Pennsylvania Population Charts According to the most recent demographics data available from the Census Bureau released in December of 2017, Figure 1 New Castle shows it has 22,500 population which is the most of all placesin the area. Figure 3 compares the population change from 2010 to 2016 and we can see New Castle indicates a decline of 773 (3%). The population percent change for all areas for 2010 to 2016 is shown in Figure 4 and for New Castle reveals it has -3.3% Population Change which is the 4th in Population Change out of 10 total in the area.