San Francisco's gay village is mostly concentrated in the business district that is located on Castro Street from Market Street to 19th Street. It extends down Market Street toward Church and on both sides of the Castro neighborhood from Church Street to Eureka Street. Although the greater gay community was, and is, concentrated in the Castro many gay people live in the surrounding residential areas bordered by Corona Heights, the Mission District, Noe Valley, Twin Peaks, and Haight-Ashbury neighborhoods. Some consider it to include Duboce Triangle and Dolores Heights which both have a strong LGBT presence.

Castro Street itself, which originates a few blocks north at the intersection of Divisadero and Waller Streets, runs south through Noe Valley, crossing the 24th Street business district, and ending as a continuous street a few blocks farther south as it moves toward the Glen Park neighborhood. It reappears in several discontinuous sections before ultimately terminating at Chenery Street, in the heart of Glen Park.

Notable locations
- Castro Theatre, a movie palace built in 1922
- 18th and Castro- San Francisco, major intersection in the Castro where many historic events, marches, protests take place.
- The GLBT Historical Society exhibit at 18th and Castro streets (499 Castro Street).[4]
- The F Market heritage streetcar line's turnaround at Market St.-17th St.-Castro
- The Castro Street Station, a Muni Metro subway station
- Hartford Street Zen Center
- Harvey Milk Plaza, location of Muni Metro Lightrail-Subway Castro street station
- 575 Castro Street - former site of Harvey Milk's Camera Store and campaign headquarters, the original building remains with a memorial plaque and mural.
- Pink Triangle Park - 17th Street at Market, a city park and monument named after the pink triangles sewn to gay prisoners targeted by the Nazis during World War II.

Courtesy of www.wikipedia.org