Podcast ad revenue in the U.S. 2021, by ad placement
In 2021, 64 percent of podcast advertising revenue in the United States came from mid-roll ads - those that play in the middle of a publisher's content. Pre-roll ads (playing before the publisher's content) accounted for 32 percent of podcast advertising revenue in the country. In comparison, post-roll ads (playing after the publisher's content) had a four percent share in the total.