St. Croix River Association Share: Non-Profit/Organization St. Croix River Association Visit Website Request Info 230 S. Washington Street St. Croix Falls, WI 54024 (715) 483-3300 Facebook About Map About Member-based organization to protect, restore and celebrate the St. Croix River and its watershed What's Nearby? Distance: 5 10 15 20 25 50 mi.