Cognomen Eastridge (Estrich 
, Eastridge 
) , in the world, is quite a rare last name. The surname Eastridge is characteristic of the United States, where it is a rare surname, Germany, where it is a very rare surname, and Canada. Very seldom, Eastridge is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Estrich | Brazil, Poland, Australia, United States, Germany |
| Eastridge | United Kingdom, United States, Canada |