Most common are several species of garter snakes, the fox snake and the bullsnake, all of which are harmless. Wildlife Diversity Program Iowa has over 1,100 species of fish and wildlife! The following list of the reptiles of Iowa lists all of the snakes, turtles and lizards that are known to occur in the US State of Iowa. Blotches and other markings are usually very dark near the head and tail, but usually fade to a light brown or rust color in the middle portion of the body on adults. This is a small Iowa species measuring 13 – 18 inches long (Conant and Collins, 1991). The belly is light colored with a series … The ground color on the back is a varying shade of brown or gray. In Iowa, the most common species of venomous snakes is the Timber Rattlesnake. Wehrle said he snapped about 140 photos before the snake jetted into some bushes with his meal. The Copperhead species are the most difficult to find and may be found sometimes in Southeast Iowa. Its tail rattles. Washington, Iowa and Kentucky you can own a snake. Reply. The Iowa DNR confirmed Thursday the animal as a Northern water snake, a non-venomous animal. Gordon Wilson says. July 12, 2020 at 10:54. The common garter snake can be found throughout Iowa. Not sure what kind of snake we got here! Terri says. On this page, you can find an overview of snakes in Iowa. A row of black spots borders the stripe on both sides. A snake can swallow animals and eggs bigger than its head – that’s like a person swallowing a watermelon whole. Bullsnakes are light, yellow or straw base color, with a row of dark blotches running down the back. Description: 36 - 72 inches. The sides have smaller blotches, bars, or speckling. The eastern garter snake is more common on the eastern side, and the red-sided garter snake is more common on the western side of Iowa. There is a light stripe that runs down the back. The 28 species of Iowa snakes range from the tiny and uncommon 7-inch western worm snake to the common bullsnake which can be over 5 feet long. This should give you a quick overview if you are dealing with a venomous snake or not. The common garter snakes like habitats a bit wetter than the plains garter snake, so you may find it by the edge of water. Thanks for the update! Bull snake, or possibly a timber rattler? They are found in Eastern and Southern Iowa in secluded wooded areas. Just click on any of the images or links to learn more about the snake. June 1, 2020 at 01:21. There are 5 species of Lizards in Iowa. Reply. Description. According to a July 2015 news release from the Iowa Department of Natural Resources, Iowa has almost 30 species of snakes. Washington and Kentucky also make exceptions for hog nose snakes, Washington is more generalized allowing rear fanged snakes. Snakes Iowa has almost 30 species of snakes, which help keep rodent and small mammal populations in check. 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