But if you were trying to figure out which court had jurisdiction over which county in states that have more than one court, such as New York, which has four, you won't find the info in the bankruptcy section, only an annoyingly overbroad map.
Instead, look in the general federal district court section where you'll find this link for all counties in a district.
The Eastern is Long Island plus three NYC boroughs. The Southern is Manhattan, Bronx up to Dutchess, but not Ulster County. The Northern extends due north of there. The Western is the, er, western part of the state.