"Stations that have dedicated their format to NPR news attract an audience with median age 52. That is almost exactly in the center of the Baby Boom generational cohort.
"The jazz stations are aging at a faster rate. With median age of 55...
"...half of the classical audience are not Boomers, rather they are Seniors on Medicare.
"Education is the most powerful predictor of listening to public radio, but the continued aging of the public radio audience shows the influence of generational cohorts."
Walrus Research "designs, conducts, analyzes and interprets audience research – especially for radio."