@Maxine33 it isn't really about the map.
What makes your listing appear (or not appear) on the map is your search ranking. When guests look for a place to stay on Airbnb, the search system picks the "top" 300 listings that match well with what the guest is looking for. High ranking listings are included very often in the top 300, and lower ranking listings are often excluded.
Certainly the map has an affect. When the map is zoomed in, there are fewer listings to compete with, so it is easier to appear in the top 300 list. But if the guest isn't searching by scrolling to your area, the best thing to do is to try to move your listing up the search rankings.
You can search in these discussions for "search ranking" or "improve ranking" and you will find a lot of discussion about how to get your listing placed higher. (Spoiler alert: it is mainly about being a great host, getting lots of good reviews, and having a competitive price.)