What was the name of the island on the east coast, where thousands of immigrants were processed before coming into the country?

-angel island

-new jersey island

- ellis island

-brooklyn island

Ellis island was where thousands of immigrants were processed before being allowed into the United States.

I think the correct answer from the choices listed above is the third option. The name of the island on the East Coast, where thousands of immigrants were processed before coming into the country is the Ellis Island. About 98% of all immigrants made it through Ellis Island with no problems.