By Steven M. Cohen: The overall American Jewish population size is stable and growing, but its character is shifting dramatically. The Orthodox population (Haredi, centrist, and modern) is exploding. The non-Orthodox are in sharp decline.
We can chart the rapid growth of the Orthodox by looking at their numbers in the Pew Research Center data over three generations, each encompassing 18 years of age. From old to young, we have the putative grandparents’ generation (age 56-73), the parents (28-45) and the children (0-17).