NPR Tops In Podcasts

On Tuesday, podcast measurement and advertising company Podtrac named NPR the top podcast publisher by size.

According to Adweek, the company's data measures 90 percent of the top podcasts, with 28 million unique monthly listeners in the U.S. and 38.5 million global listeners. To be included in the rankings, publishers must have at least 30 days' worth of data that can be analyzed.

According to Podtrac, NPR had 7.2 million monthly users and more than 61 million unique downloads for its 32 shows in April.

Coming in at No. 2 was the combination of This American Life and Serial, which operate independent of NPR and are produced by WBEZ and Chicago Public Media. Together, they tallied 5.6 million monthly U.S. listeners and 22.2 million downloads on Podtrac's chart.

Other top podcasts include WNYC Studios (5.5 million monthly listeners), How Stuff Works (3 million listeners) and CBS (1.5 million monthly listeners).