The Stuart Costco opened on April 25, 2025, after years of debate and anticipation. The project added a 160,000-square-foot warehouse and 18 gas pumps to Kanner Highway, marking the first full Costco on the Treasure Coast. For Martin County residents, who once had to drive to Palm Beach Gardens or Melbourne, the store’s arrival was a major shift in daily shopping routines. Membership sales were strong before the opening, and the crowds that followed proved just how much demand had built up.
The positives
Shoppers consistently highlight the convenience of having Costco close to home. On MapQuest, one reviewer called it “a great store” and said “finally we have Costco in Stuart.” The gas station earns frequent praise for competitive prices and ease of use. Local reporting also confirmed thousands of memberships were sold before opening day, reflecting pent-up demand.
The challenges
Opening weekend brought problems. More than 30 drivers were ticketed for illegal parking, and early visitors faced long waits and crowding (WPTV). Some reviews noted messy aisles and occasional stock gaps, while others pointed out that this location is smaller than larger South Florida warehouses, limiting selection. Six months later, traffic flow and parking remain the most common complaints.
The verdict
Stuart’s Costco has quickly become a staple for Treasure Coast shoppers. It delivers the expected savings and convenience but still comes with growing pains. Crowds and parking headaches haven’t gone away, yet for most locals, the trade-off is worth it. The first Costco in the region may not be flawless, but it’s firmly established as part of everyday life in Martin County.