Local businesses have been marketing their goods and services on Detroit radio since August 20, 1920. That's when the Detroit News, owner of radio station 8MK, (later known as WWJ) began broadcasting. The broadcast originated from the second floor of the newspaper's headquarters on Lafayette Boulevard.

The historic programming that night began with station operator Frank Edwards declaring, "this is 8MK calling." This was followed by the playing of 78 rpm records on a borrowed phonograph. The first selections played were two of the most popular songs of the World War One era,  "Roses of Picardy" and "Annie Laurie".

Who could have guessed that 103 years later, advertising on Detroit radio would still be the best advertising option for all types of retailers and business owners.

Every week, according to Nielsen, Detroit radio reaches 2,804,826 adult consumers. This reach is significantly higher than all other advertising options including local TV, cable, social media, streaming video, online audio, and newspapers.

Reach, according to Nielsen, is the audience metric most responsible for driving the success of an advertising campaign. Only the message itself carries more sway.

Southeast Michigan business owners have depended on Detroit radio to market their goods and services since WWJ, the city's first radio station, went on air in 1920. Despite the advent of new media and technologies since then, advertising on local radio stations is still the best way for the area's 158,041 small business owners to create and maintain customers.

Here are five facts every business owner should know about advertising on Detroit radio in 2022.

Despite an abundance of media options, Detroit radio reaches the most consumers every week. 

According to Nielsen, every week 2.8 million adults tune in to their favorite Detroit stations. This is more than watch local TV stations, cable, or streaming video. It is more than browse social media. It is more than listen to streaming audio services or podcasts. It is more than read local newspapers.

Not all listening to Detroit radio happens on car radios, table-top radios, or boom boxes. Instead, local consumers also use their smartphones, computers, and tablets as a way to connect to their favorite local stations.

Neilsen finds that 23.3% of all consumers who listen to a Detroit radio station over the air will, at some point during the month, also connect to a local station via the internet. As a matter of fact, during a typical hour, Nielsen data suggests that 7.7% of a station's total audience is listening on a device other than a traditional receiver.