Waterloo Animal Hospital Large Animal Vet Contact Information Phone: (618) 939-8282 Address: 506 Park St, Waterloo, Illinois 62298 Get Directions About Waterloo Animal Hospital is a large animal vet located in Waterloo, IL. Loading... No Records Found Sorry, no records were found. Please adjust your search criteria and try again. Maps failed to load Sorry, unable to load the Maps API. Claim Listing Recently Viewed: Loading...