Advertisers can now assess how well podcast campaigns perform in specific US markets, not just nationally, after Nielsen’s geographic audience data was added to the Magellan AI platform.
The integration of Nielsen’s proprietary Designated Market Area data, which divides the United States into 210 standardised media regions, means buyers and sellers can view podcast performance alongside traditional channels such as television and radio, using the same framework that many large brands use for planning their media investments.
Magellan AI said the move expands the reach of its attribution reporting tools, making them more actionable for agencies and advertisers that need to demonstrate local return on podcast advertising spend to stakeholders.
The platform’s reporting dashboard now shows performance broken down by Nielsen DMA regions, giving users the ability to compare local podcast results directly with other media in the same markets.
Nielsen, which supplies data widely in the media industry, said the agreement underscores its commitment to supporting consistent measurement across media types.
Rich Tunkel, Managing Director at Nielsen Audio, said: “Advertisers need a consistent way to evaluate the effectiveness of their media”.
He added that bringing the DMA data into podcast measurement helps ensure podcast attribution aligns with the same geographic standards used for other major media channels.
The changes will be available immediately to customers of Magellan AI as part of their standard reporting suite.
Industry observers say the move could influence how advertisers plan and justify podcast budgets, particularly for campaigns that target regional audiences or seek to understand performance in specific metropolitan areas.
By aligning digital audio measurement with established market definitions, the industry can make better-informed decisions about how podcast advertising contributes to broader campaign goals, and how it compares with spend on more traditional outlets.





