Which client would you advise to use radius targeting?
Luis, whose e-commerce business delivers nationwide
Denise, whose service can reach customers within 30 miles
Christopher, who wants to promote his new product in select cities
Mabel, who wants to exclude her ads from certain cities
When you target a radius, we’ll show a list of locations that are contained within the radius, also known as “Locations within this target”. It’s a good idea to review these locations to make sure that you’ve captured the areas that you expected. Keep in mind that if you select a small radius, your ads might only show intermittently or not at all. That’s because small targets might not meet our targeting criteria. You’ll also have the option to refine your targeting by individually selecting cities or regions within the radius.
Radius targeting (also known as proximity targeting or “Target a radius”) allows you to choose to show your ads to customers within a certain distance from your business, rather than choosing individual cities, regions, or countries.
Read more here: https://support.google.com/adwords/answer/1722043?hl=en