Voici ce que j'ai trouvé sur Wikipédia, en anglais naturellement mais.....
The Tenderloin is a dense downtown neighborhood located in the flatlands on the southern slope of
Nob Hill
, nestled between the
Union Square
shopping district to the northeast and the
Civic Center
office district to the southwest. It encompasses about fifty square blocks and a conservative description has it bounded on the North by Post Street, on the East by Mason Street, on the South by
Mission Street
and on the West by Van Ness and Ninth Streets. The northern boundary with
Nob Hill
can range as far north as Pine Street in western sections of the Tenderloin, such as the
Polk Gulch
neighborhood.
The Tenderloin roughly lies west of
Union Square
, south of Nob Hill, east of the
Western Addition
and Van Ness corridor, and north of "
South of Market
" (
SOMA
).
It includes neighborhoods referred to as Civic Center, Downtown, Polk Gulch, and Little
Saigon. The words "The Tenderloin" seldom appear in real-estate listings.
The extension of the Tenderloin south of Market Street in the vicinity of Sixth, Seventh, and Mission Streets is known locally as Mid-Market and is "
Skid Row
, " or sarcastically as "the Wine Country, " an allusion to "
winos
" (street-dwelling
alcoholics
). The northern part of it beginning at Post Street is called a variety of names, including Tenderloin Heights, Lower Nob Hill (widely used in real estate listings) or
The Tendernob
. The eastern extent, where it meets Union Square is known as the
Theater District
. Part of the western extent of the Tenderloin, Larkin and Hyde Streets between Turk and O'Farrell, was officially named "
Little Saigon
" by the City of
San Francisco.