My guess is that people from the same region and similar background will have more and closer "alters". So, if you are Californian-American then there is many people that will speak similar to you in HN. If you are a Satawalese speaker then you may be quite alone in your own group.

(The Satawalese language has 460 speakers, most of who live in Satawal Island in the Federated States of Micronesia.)