History podcast CPM: what the back catalog pays

There is no published history podcast CPM. The Libsyn Ads advertising guide publishes rates for ten content categories, and History is not one of them. Neither is it in ADOPTER Media's July 2026 rate breakdown, which draws on more than 150,000 placed ads. So if a sponsor asks what history shows go for, the honest answer is that you price the format, not the genre.

The number that decides what a history show earns is the split between your new episodes and your back catalog. Libsyn prices back catalog insertion at $14 to $16 and current-episode insertion at $18 to $22, so the same download is worth roughly a quarter less when it lands on an old episode.

History podcast CPM: the format rates that actually apply

These are the rates the two sellers do publish. Every one of them applies to a history show.

A read you record yourself and bake into the file pays the most. A spot dropped into your whole archive by a server pays the least. The distance between the top and bottom of that table is roughly double.

The ten categories that do have a rate

Libsyn Ads publishes these. History is absent, and so are True Crime, Sports and News.

Do not read History into this table by guessing a neighbour. The categories that are listed span $22 to $30, which is a narrow band, and the format table above spans $5 to $30. Format is the bigger lever by a wide margin, which is why a sponsor conversation that starts with genre usually ends in the wrong place.

If you want the wider picture behind these figures, the podcast CPM benchmarks page covers rates by format and placement across the market, and fiction podcast CPM walks through the one narrative genre that does carry a published rate.

Why the back catalog decides your history revenue

History episodes hold value in a way most genres cannot. A news episode is worthless in six weeks. A comedy episode about a current film ages nearly as fast. An episode on the Peasants' Revolt does not age at all, and people who find your show in year three start at episode one.

That builds a download base which keeps producing every month without you publishing anything. It also changes what a sponsor is buying. A full catalog campaign reaches people mid-series, months apart, with no way to control the order they hear the spots in, and the promo code you gave in January is still being read out in July unless you go back and swap the file.

Run the arithmetic on 30,000 monthly downloads using the Libsyn midpoints of $15 for catalog and $20 for episodic. An archive-heavy show with 80 percent of its downloads on older episodes bills about $480 a month of inventory at a blended $16. Flip the ratio so 80 percent lands on new episodes and the same 30,000 downloads bill about $570 at a blended $19. Same audience size, nearly 20 percent apart on revenue.

Work out your own split before you quote anyone:

1. Pull your last full month of downloads by episode.
2. Separate episodes published in that month from everything older.
3. Divide the older total by the full total. That percentage is the share of your inventory priced at the lower band.
4. Quote a blended rate that reflects the actual mix, not the headline host-read number.

Most hosting dashboards report a rolling total per episode rather than downloads by calendar month, so step two usually means exporting and comparing two month-end snapshots. Our guide to measuring podcast CPM covers the arithmetic once you have the split, and podcast downloads benchmarks gives you a sense of whether the totals themselves are competitive.

The audience case you make instead of a rate

Since there is no genre CPM to point at, point at reach. Edison Podcast Metrics, which measures listening rather than downloads, put History inside the US top 10 genres by weekly reach off a survey of 11,675 weekly podcast listeners in Q3 2022, at number eight. Its genre-level ranking published in March 2023 named Dark History, Lore and You're Wrong About as the history shows with the largest weekly US audience at the time.

The other half of the case is your own audience data, because a buyer with no history benchmark to work from will ask who listens instead. A listener survey gives you age, income and purchase categories in your audience's own words, and an audience persona turns that into the one page a media buyer can act on. Neither requires a genre rate to exist.

What to do with these numbers in a pitch

Lead with the format you are selling and the rate band it sits in. Give the download number for that specific inventory, not your all-time total. Then state the catalog share openly, because a sponsor who discovers it later treats every other number you gave as suspect.

If your rate feels low against the published bands, the fix is usually inventory mix, not negotiation. Shifting a sponsor from full catalog insertion to a baked-in read on new episodes moves the same audience from the $14 to $16 tier to the $24 to $26 tier. Our notes on improving podcast CPM cover the other levers worth trying first.

Podder tracks per-episode download curves across the shows on it, which is what turns the catalog-share calculation above from an estimate into a number you can put in a deck. Start on the Analytics plan and install the prefix on your next episode.