Whiskey Down Diner is located at 252 Main Street, Farmingdale. Parking is either on the street, or in the large lot behind the restaurant. The street-level, single-door entrance leads to a small entryway and another single door to the welcome area.
Indoor seating is at booths, a full-height counter and several tables. One of the two, large, single-occupancy restrooms, is handicapped-accessible. Sinks are wheelchair-accessible. There is a baby-changing station.
Outdoor seating is at tables and chairs, or picnic tables and benches. There is good space between tables.