From a total population of 4,422, Monongahela has a median age of 45.4. The average age of males, in Monongahela, is 37.8 while the average age of females is 51.2. When you compare this to median age of Pennsylvania, Monongahela is 5.0 years older.
The median income of individuals, in Monongahela, is $21,716 while the average household income is $43,272. When comparing the median income of people living in Monongahela to the rest of Pennsylvania, the average income in Monongahela is $7,196 less.