Nielsen Report Highlights Radio’s Reach And Advertising ROI.

Radio reaches 92% of U.S. adults each month, or more than 242 million consumers, making it a larger-reach platform than connected TV devices, smartphones and live or time-shifted television, according to a new Nielsen report.

The October 2026 Nielsen Insights article, “Everyone. Everywhere.,” argues that radio remains a powerful advertising medium despite marketers’ growing emphasis on digital platforms and measurable online engagement.

Radio’s monthly reach extends across demographic groups, including 92% of Black adults, 93% of Hispanic adults and 87% of adults ages 18-34, a group often characterized as primarily digital consumers.

Americans spend nearly four hours daily with audio, and radio and podcasts together account for 82% of the ad-supported audio time available to advertisers vs. 16% for streaming music services, according to Nielsen and Edison Research data cited in the report.

Radio also benefits from listening outside the home. About 65% of adult radio listening occurs away from home, with most of that activity taking place in vehicles. During weekday drive times, the share rises to 73%. More than 80% of ad-supported audio listening in cars goes to AM/FM radio, according to Edison Research.

A May 2026 Nielsen study conducted with iHeartMedia found that about half of recent and prospective car buyers would refuse to purchase a vehicle without AM/FM radio, while more than seven in 10 said it should come standard. Two-thirds of respondents said zero latency matters for live sports, where streaming broadcasts can lag behind the action.

The report also challenges marketers’ perceptions of radio’s effectiveness. Nielsen’s Global Compass benchmarks ranked radio last among 10 channels in perceived effectiveness, but the medium delivered a weighted return on investment of $2 for every dollar spent. That ranked second only to social media, at $2.22, and ahead of television, display advertising, search and connected TV. Podcasts generated a $1.49 return, comparable to television and display advertising.

Nielsen argues that radio’s reach requires measurement systems that account for listening across locations and devices.

In the 48 largest U.S. markets, Nielsen uses wearable Portable People Meters to detect codes embedded in station audio. In more than 200 additional markets and outlying counties, listening diaries record where radio use occurs, including in vehicles. Nielsen says its audio measurement covers every U.S. county.

The company also uses random, address-based samples weighted to U.S. Census figures for geography, age, gender and ethnicity. Its diary service has maintained Media Rating Council (MRC) accreditation since 1968. As Inside Radio previously reported, Nielsen and the MRC have placed Nielsen’s audio diary measurement service on an accreditation hiatus, for a six-month period from June 23 through Dec. 23, 2026. The pause gives Nielsen the time needed to continue its evolution of the diary service.

Nielsen reported that a three-minute listening qualifier introduced in January 2025 increased measured average radio audiences by 24% on average by crediting more short listening occasions around commercial breaks.

The report cautions against relying solely on connected-vehicle listening data, which can identify what a vehicle’s audio system is tuned to but generally cannot establish who is listening, how many people are present or their demographics. Such data also excludes vehicles that don’t report information, including many older vehicles and commercial trucks.

Nielsen says it combines large data sets with verified listening behavior from representative panels to improve accuracy.

Among adults ages 18-34, radio alone reaches 88%, Nielsen said, while adding podcasts increases combined coverage to 94%.