Sunflower Bank Share: Banks Sunflower Bank Visit Website Request Info 25 E Ken Pratt Blvd., Ste. 100 Longmont, CO 80501 303-651-2542 www.sunflowerbank.com About Map About Full-service community bank offering a wide variety of financial services. What's Nearby? Distance: 5 10 15 20 25 50 mi.