The 30th Avenue station is a local station on the BMT Astoria Line of the New York City Subway. It is located at 30th Avenue and 31st Street in Astoria. The station is served by the N train at all times, as well as by the W train on weekdays.

The BMT Astoria Line is a rapid transit line in the B Division of the New York City Subway, serving the Queens neighborhood of Astoria. It runs south from Ditmars Boulevard in Astoria to 39th Avenue in Long Island City above 31st Street. It then turns west and serves Queensboro Plaza over Queens Plaza.