That may be true, but professionals also listen to the radio. You can also use different radio formats to target specific groups within your community, As a rule, an appearance on a local radio news and talk station will reach the most people 45 years and older. You know the ones who take the time to vote. You know parents. These examples are based on national averages.
Every market is a little different.
Approach the news director or program director of that station about the possibility of a daily or weekly quick update during the morning program. The positive feedback was overwhelming. The station loved it. I interacted with the DJs and tried to make it fun. It gave us a chance to introduce our staff and show the public what caring dedicated people worked with their children everyday.