The 3 major types of catfish that most anglers have heard of are channel catfish, flathead catfish, and blue catfish. There are also white catfish which are smaller and usually don’t exceed 20 inches as well as a variety of bullhead that rarely exceed 10 inches. Channel catfish are most popular because they are found in so many types of waters. Channel catfish can be found throughout the country in rivers, streams, lakes and ponds. Most channel catfish are in the 2 to 3 pound range, but there are lots of channel cats caught over 10 pounds with a world record over 50 pounds. Flathead catfish are almost as popular. They are found throughout a large portion of the country and are very common in rivers and reservoirs. Flathead grow bigger with average fish above 5 pounds in most rivers, many fish caught over 50 pounds and a world record over 100 pounds. Blue catfish grow very big also. They are located throughout the central and southern parts of the United States. There aren’t as many blue catfish as there are flatheads and channel cats, but the blue catfish that do exist grow very big. 50 pound blue catfish are not unheard of and the world record is listing at over 100 pounds.