The Northern Station District is one of the city’s most diverse and densely populated jurisdictions,including many high-occupancy dwellings such as large apartment buildings,senior citizens’ residences,residential hotels,and public housing complexes. It encompasses several distinct neighborhoods,including the Civic Center,Western Addition,Hayes Valley,Japantown,Cathedral Hill,Polk Gulch,Russian Hill,Pacific Heights,Cow Hollow and the Marina. It’s also a favored location for street fairs and cultural celebrations,including the Fillmore Street Jazz Festival,Cherry Blossom Festival,Union Street Fair,Clusterfest Comedy Expo,SF Pride Celebration,Bay to Breakers,Fleet Week and the symphony and opera Openings.