No, Henry E. Rohlsen Airport (STX) on St. Croix does not have a dedicated passenger lounge, so if you searched st croix airport lounge or us virgin islands airport lounge, the honest answer is that this small island field has no such facility. Travelers flying through STX should plan around the airport's compact single concourse rather than a members-only room tucked behind security.
For a genuine lounge experience in this part of the Caribbean, San Juan's Luis Munoz Marin International Airport (SJU) is the realistic option, since it hosts multiple lounges tied to airline status, credit-card programs, and paid access that St. Croix simply does not have the traffic to support. Most travelers connecting through San Juan on the way to or from STX will find that airport's lounge landscape far more developed than anything on St. Croix itself.
St. Croix's own airport experience is shaped heavily by the Atlantic hurricane season, which runs roughly June through November and regularly disrupts island schedules with rerouted or delayed flights. During active storm threats, airlines often adjust or suspend service to STX altogether, and the terminal's modest facilities are built around handling that seasonal unpredictability rather than a steady flow of premium travelers who might justify a lounge operator. Outside of storm season, traffic here stays light and seasonal, part of why no lounge has ever appeared, and why none is likely to appear soon.
If lounge access matters on your itinerary, treat it as something you arrange at your connecting hub rather than at STX itself. The realistic plan at Henry E. Rohlsen is simple seating near your gate, basic food and drink options in the small terminal, and building in extra buffer time during hurricane season when schedule changes are more likely. Confirm your connecting airport's lounge options and your flight's current status directly with your airline before you travel, since storm-season disruptions can shift plans on short notice.