Convenience stores in Marengo, Iowa The most complete information about Convenience stores in Marengo, Iowa: Addresses, phone numbers, reviews and other information. All stores Convenience Furniture Hardware Home goods All convenience stores in Marengo Ampride Convenience Open now Until 11:00 pm 2205 U.S. 6, Marengo, IA 52301 Get Directions Contacts Write a review Casey's General Store Convenience Open now Until 11:00 pm 2157 Highway 6 Trail, Marengo, IA 52301 Get Directions Contacts Write a review ✗ Facebook Google Plus Twitter