Turtles in Iowa - 12 Species That are Found Here

Iowa is home to 12 species of turtles. These include snapping turtles, smooth softshells, spiny softshells, map turtles, painted turtles, mud and musk turtles, wood turtles, and box turtles.

This diverse list of turtle species in the state can be attributed to Iowa’s abundance of cropland and additional land cover such as forests, wetlands, grasslands, rivers, and lakes—all of which provide suitable habitats for various turtle species.

Our article below will take you through the full list of the species of turtles found in Iowa. For each turtle species, we’ll focus on physical appearance, average adult size, what they eat, where they live, lifespan, and conservation status.

12 Types Of Turtles in Iowa

Contents

1. Common Snapping Turtle

Scientific name: Chelydra serpentina
Common name: Snapping Turtle
Family: Chelydridae

Size: 8 to 18 1/2 inches
Lifespan: 30 to 50 years or more
Conservation status: Least Concern

Common snapping turtles are widespread throughout Iowa. An average adult is pretty large and has a shell length of 18½ inches long.

This species has a chunky head, a long tail, and large webbed feet. The shell color is black or olive and has no distinct pattern. These Iowa snapping turtles are known for their powerful jaws—they’re so strong that these turtles eat other turtles!

You’ll find them in waterbodies with muddy bottoms. Examples include marshes, ponds, lakes, rivers, and even shallow streams. They generally prefer waters with aquatic vegetation in plenty and foods such as fish, frogs, birds, etc.

These Iowa turtles generally show docile behavior but can get quite aggressive if taken out of water. The best way to calm it is to take it back to the waters, where it feels safe.

2. Midland Smooth Softshell

Scientific name: Apalone mutica
Common name: Midland Smooth Shell

Family: Trionychidae
Size: 6 to 13 inches
Lifespan: 40 to 60 years

Conservation status: Least Concern

The midland smooth softshell turtle boasts its position as the fastest turtle on land in Iowa! Though most people believe these turtles are slow-moving, they must be quick to enable them to outrun their predators given that their soft shells don’t offer much protection.

Shell color of this turtle species ranges from olive to dark brown. The upper part of its shell features dark markings (with female markings appearing in a blotchier pattern than the males’)

The shell of these turtles also appears rounder and flatter, just like other softshell species.

Note that Gulf Coast smooth turtle (Apalone calvata) is the closes relative of this Midland smooth softshell turtle. The main difference existing between these two species is size, with the Gulf coast turtle reaching a maximum of 12 inches long.

Also, the Gulf coast species has no lines on its face while the midland smooth softshell turtle does.

These turtles like inhabiting waterbodies like rivers and streams in Iowa that provide an abundance of mud or sand at the bottom. They can also be found in stagnant waterbodies.

Midland smooth softshell turtles are omnivorous and their diet revolves around aquatic vegetation and insects. However, they have been observed to like meat more than plant matter and will mainly eat snails, insects, and fish.

3. Spiny Softshell Turtle

Scientific name: Apalone spinifera

Common name: Spiny Softshell Turtle
Family: Trionychidae
Size: 5 to 9 inches (males), 12 to 20 inches (females)

Lifespan: 30 to 70 years
Conservation status: Least Concern

The Eastern Spiny softshell turtle is a medium-to-large freshwater species that lives in Iowa’s lakes, streams, and rivers with muddy or sandy bottoms and little or no vegetation.

Female spiny softshell turtles are usually larger than males. And unlike other turtles, this species has a flexible, leather-like carapace that’s extremely rounded and flattened. The shell color can be olive grey or yellow-brown. Just like other softshell turtles, this species also has a snorkel-like snout.

The young ones feature well-defined round spots that are easily visible on the shell (though these spots become invisible as they transition to adulthood).

Spiny softshell turtles in Iowa tend to eat anything they find in the waters including crayfish, insects, small fish, and so on. They hunt by burying themselves in the mud or sand while keeping their head uncovered to grab food as it swims by.

These turtles of Iowa are also able to breathe underwater by taking in oxygen through their throat skin. This is a useful adaptation given that they don’t spend a lot of time out of water.

Other adaptations of these Iowa turtles include webbed feed, long claws, and extremely flat shells that enable them to quickly swim away from predators and burry in the muddy bottom of the waters they reside in.

4. Common Map Turtle

Scientific name: Graptemys geographica

Common name: Common Map Turtle, Northern Map Turtle
Family: Emydidae
Size: 3 to 10 inches

Lifespan: 30 to 50 years
Conservation status: Least Concern

The common map turtle has also been observed in Iowa. To be more specie, this freshwater turtle resides in the rivers and lakes of Iowa.

They prefer living in large waterbodies with debris. These offer the perfect spots for basking while the water bodies enable them to spend their hibernation periods in winter completely submerged.

Like other map turtles, this common map turtle gets its name from the map-like pattern on its shell. Its shell is typically darker and ranges from brown to black. The map pattern has a lighter coloration.

The common map turtle of Iowa is mainly carnivorous and feeds on mollusks such as clams and snails. It will also eat crayfish and insects. And when animal matter gets scarce, it will feed on plant matter.

Note that it may be difficult to spot a common map turtle in the wild in Iowa. Although active during the day, these turtles are quite timid and will quickly retreat to the waters at the slightest disturbance.

5. Ouachita Map Turtle

Scientific name: Graptemys ouachitensis
Common name: Ouachita Map Turtle, Map Turtle

Family: Emydidae
Size: 3 to 5 inches (males), 8 to 10 inches (females)
Lifespan: 30 to 50 years

Conservation status: Least Concern

The Ouachita map turtle lives in the northern part of Iowa and is regarded as one of the less popular map turtle species. The turtle makes an excellent choice of pet for many people since it’s easy to care for.

As for its name, this species is named after the river where it was discovered—Ouachita!

Ouachita turtle is medium to large in terms of size. The average adult female is 3-5 inches long while the male is 8 to 10 inches long. It features thin, yellowing lines that form a web on the turtle’s shell (similar to a contour elevation map).

Moreover, the turtle has brown to olive coloring, with a light spot under both eyes.

The easiest way to identify this Iowa turtle from other map turtle subspecies is by checking the dots on its face. They usually have 3 prominent spots—under the jawline, under the eye, and behind the eye.

Note that this turtle prefers living in stagnant or slow-moving waters, including ponds, lakes, and streams of Iowa. It also prefers waters with plenty of vegetation.

This species is omnivorous and eats meat, insects, vegetables, fruits, and aquatic vegetation, to name but a few.

Also read: Turtles in Louisiana

6. False Map Turtle

Scientific name: Graptemys pseudogeographica
Common name: False Map Turtle, Sawback Turtle
Family: Emydidae

Size: 6 to 10 inches (females), 3.5 to 6 inches (males)
Lifespan: 30 to 50 years
Conservation status: Least Concern

The False map turtle is another turtle species found in Iowa. This turtle’s preferred habitat in Iowa includes rivers, streams, and oxbow lakes of the Missouri and Mississippi river systems.

It is an excellent swimmer and prefers moderate currents and deep waters.

Its upper shell coloring ranges from olive to dark brown, with light-colored lines on its limbs. It also features a line behind its eye that forms a backward “L” shape. The map pattern on its carapace tends to fade as the turtle ages.

Since this map turtle of Iowa is omnivorous, it feeds on aquatic insects and animals as well as vegetation. It is fond of river snails and crustaceans. Don’t forget it has strong jaws and can give a nasty bite!

Like most of the other aquatic turtles of Iowa, this map turtle spends most of its waking hours sunning.

The false map turtle is quite shy and quietly and swiftly slides into the water at the slightest signs of disturbance. It likes spending most of its time in water and is most active in climate conditions of over 85 degrees Fahrenheit.

7. Yellow Mud Turtle

Scientific name: Kinosternon arizonense
Common name: Yellow Mud Turtle, Mud Turtle
Family: Kinosternidae

Size: 4-5 inches
Lifespan: 40 years
Conservation status: Least concern

The Yellow mud turtle is a species native to Iowa and prefers living in any waterbody in Iowa state.

Possible places you can find it includes muddy pools, cattle tanks, irrigation ditches, sewer drains, and even cisterns!

This turtle will spend more time on land migrating to new water sources and is never picky about where it can stay.

It has its upper shell part flattened with colors varying from brown to black or olive. It also features dark brown edges around its scutes. The skin color is usually olive. Males have a sharp or horny end as a distinctive feature.

This Iowa yellow mud turtle is omnivorous like any other mud turtle. its diet is made up of a variety of foods including tadpoles, leeches, crayfish, fairy shrimp, and fish.

It will also eat frogs, slugs, and snails. And as an opportunistic feeder, it will also eat decaying animal and plant matter.

8. Common Musk Turtle

Scientific name: Sternotherus odoratus
Common name: Eastern Musk Turtle, Common Musk Turtle, Musk Turtle, Stinkpot
Family: Kinosternidae

Size: 2 to 4.5 inches
Lifespan: 30 to 50 years
Conservation status: Least Concern

The Common Musk Turtle is another aquatic turtle found in Iowa’s slow-moving and sluggish streams as well as still water bodies.

The turtle usually prefers areas with dark crevices, where it can easily hide. It also prefers lots of plant matter to burrow in and hide.

An average adult eastern musk turtle is quite small (2 to 4.5 inches long). It has a pretty plain appearance with highly consistent colors. Both the shell and skin usually share the same color and can range from dark brown to black.

The turtle shell has one unique feature—a ridge traversing its entire shell length. Besides, it has another distinctive feature: two light-colored stripes on its head.

Common musk turtles of Iowa are herbivorous and will eat small aquatic or semi-aquatic animals, carrion, and aquatic vegetation. They will also feed on any other vegetation on land.

When it feels threatened, this turtle species emits a foul odor (a musky odor, hence its name). This scent can be detected in water or on land. It can also easily waft through the air to its predators.

9. Western Painted Turtle

Scientific name: Chrysemys picta belli
Common name: Westland Painted Turtle

Family: Emydidae
Size: 4 to 10 inches
Lifespan: 30 to 40 years

Conservation status: Least Concern

The Western painted turtle is a subspecies of painted turtle and is also found in Iowa waterbodies.

This turtle is identified by an oval-shaped carapace that lacks a ridge in the middle. The carapace is usually dark olive or black in color.

The lower side of the shell is usually red, with multiple dark markings in the center. And the skin itself is covered with yellow stripes.

Westland painted turtles of Iowa are aquatic and their webbed feet help propel them in the waters.

The most common habitats for this turtle in Iowa include slow-moving rivers, shallow streams, and lakes. They choose these areas because they can easily find food.

Given that they’re omnivorous, they feed on aquatic vegetation as well as meat from insects, snails, shrimps, tadpoles, and earthworms.

Their hatchlings are more carnivorous to help take in more proteins for building muscle.

10. Blanding’s Turtle

Scientific name: Emydoidea blandingii

Common name: Blanding’s Turtle
Family: Emydidae
Size: 5 to 8 inches

Lifespan: up to 80 years (or more!)
Conservation status: Endangered

Blanding’s Turtle is also known as the “turtle that smiles” and is named in honor of William Blanding, the American naturalist.

The species is semi-aquatic and is categorized under endured species in Iowa. It is mainly concentrated in the northern half of this state, but its population is quite scattered—making it hard to find.

A typical Blanding’s turtle in Iowa has a dark oval shell covered with faint yellow speckles. The lower side of its shell is usually yellow with black patches.

Blanding’s turtle in Iowa prefers living in marshy habitats. And the fact that it’s losing these favorite habitats is one of the reasons causing its population to decline fast.

Because this turtle species is omnivorous, it feeds on leatherworks, crayfish, and aquatic invertebrates.

It also occasionally feeds on plants and doesn’t rely on water to help it sallow its food as it’s the case with most turtle species.

11. Wood Turtle

Scientific name: Glyptemys insculpta

Common name: Wood turtle, Sculptured Tortoise, Redleg, Red-legged Tortoise
Family: Emydidae
Size: 5.5 to 8 inches

Lifespan: 40 to 60 years
Conservation status: Endangered

Wood turtle species also inhabit the various woodland habitats across Iowa state. However, they also tend to stay near the water and will frequently venture into it.

During winter, they tend to hibernate at the bottom of deep rivers and pools.

The turtles get their name from their sculpted-like looks. Their upper shells are dark brown and have sport patterns resembling wood grain and growth rings.

Their scutes may sometimes appear like they’re pyramiding, further enhancing their sculpted shape.

Wood turtles of Iowa are diurnal omnivores and their diet mainly consists of berries, plants, insects, and mollusks.

They forage for their food widely and have even been observed stomping their feet on the ground as a way of tricking the earthworms into surfacing.

12. Ornate Box Turtle

Scientific name: Terrapene ornata

Common name: Ornate Box Turtle
Family: Emydidae
Size: 5 to 7 inches

Lifespan: 40 to 60 years
Conservation status: Near Threatened

Ornate box turtles are present in Iowa and are recognized by the beautiful pattern on their carapace. This eye-pleasing pattern is sometimes referred to as a starburst pattern.

Their skin is grey and may feature yellow or white spots. Male heads occasionally feature green color.

Though there exists a little distinction between the males and females of these Iowa box turtles, males are generally smaller than females.

During hot weather, this turtle requires water to help regulate its body temperature.

The Iowa species of turtle are known to hibernate in burrows during cold weather. They’re also capable of surviving in frozen soils for several days.

Being omnivorous in nature, and opportunistic feeders, these turtles will gladly feed anything available to them in their habitat or what’s abundant in a given season. They have been observed eating fruits, vegetables, grasshoppers, and various other insects.

Also, keep in mind that these box turtles in Iowa are pretty shy and don’t like being handled excessively. As such, you may want to avoid approaching them suddenly while in the wild in Iowa.

Related: Turtles in Virginia

Conclusion

These are the 12 various turtle species inhabiting the state of Iowa. This diverse list features snapping turtles, smooth softshells, spiny softshell turtles, map turtles, painted turtles, mud and musk turtles, wood turtles, and box turtles.

Iowa’s abundance of cropland and additional land cover such as forests, wetlands, grasslands, rivers, and lakes offers suitable habitats for these various turtle species. This explains why it enjoys a diversity of all these turtle species.