Are There Muskrats in Missouri?
Muskrats are abundant throughout Missouri's river systems and wetlands. These skilled rodents thrive in the Missouri River, Mississippi River, and countless tributary valleys and marshes. From northern to southern Missouri, muskrats inhabit diverse aquatic habitats year-round. The state's extensive river corridors and wetland systems provide ideal muskrat habitat.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 22, 2026.
- 274
- GBIF records
Yes, muskrats are in Missouri. Next you'll want:
Muskrats are abundant throughout Missouri's river systems and wetlands. These skilled rodents thrive in the Missouri River, Mississippi River, and countless tributary valleys and marshes. From northern to southern Missouri, muskrats inhabit diverse aquatic habitats year-round. The state's extensive river corridors and wetland systems provide ideal muskrat habitat.
Where in Missouri Muskrats Are Found
Muskrats inhabit wetlands throughout Missouri. The Missouri River, flowing from northwest to southeast across the state, holds significant populations in its floodplain wetlands and backwater areas. The Mississippi River along the eastern border supports abundant populations. The Osage River, Kansas River, and other major tributaries host healthy muskrat areas. The Ozark region's wetlands, including areas around Table Rock Lake and other reservoir systems, support populations. The Big Spring area and associated wetlands in south-central Missouri host muskrats. The Meramec River valley contains productive muskrat habitat. The Current River and Jacks Fork River systems in the Ozarks support populations. Northern Missouri's prairie pothole wetlands and marshes concentrate muskrats. The Platte River bottoms host populations. Southern Missouri's Ouachita River wetlands have established populations. Learn more aboutMissouri's diverse habitats.
Season and Timing in Missouri
Muskrats are active year-round in Missouri, with seasonal shifts in visibility and activity. Spring, from March through May, brings intense breeding and territory establishment. Young are born from April through August, with peak births occurring in late spring and early summer. Summer brings the highest visible populations as young gain independence and explore waterways. Fall, from September through November, intensifies as muskrats gather vegetation for winter. Missouri's relatively mild winters allow continued visible muskrat activity. Muskrats remain active throughout winter, even when waterways partially freeze. Northern Missouri experiences harsher winters than the southern portions, influencing visibility patterns. Spring and early summer offer excellent observation opportunities throughout Missouri's waterways. Late summer into fall shows heightened activity as muskrats prepare for winter months. Winter activity continues in open water areas and around maintained breathing holes.
How to Identify a Muskrat
Muskrats are compact rodents weighing two to four pounds and measuring about 16 to 25 inches long, including their distinctive tail. Their most recognizable feature is their vertically flattened tail, dark brown or black, which clearly distinguishes them from other aquatic animals. Muskrats have dense, waterproof fur that's dark brown on the back, lighter gray on the sides and belly. Their small ears are mostly hidden by fur. Their hind feet are partially webbed for efficient swimming. Males and females look similar, though males may be slightly larger. Young muskrats resemble small adults. When swimming, typically only their head and tail tip are visible above water. Their distinctive flattened tail is the primary identification feature distinguishing them from other species. Muskrats make soft vocalizations including chattering sounds when communicating. The combination of moderate size and unique tail shape enables straightforward identification.
Where Sightings Concentrate in Missouri
Muskrats concentrate in Missouri's productive wetland and river systems. The Missouri River's extensive floodplain wetlands host consistent populations throughout the state. The Mississippi River's backwater areas and adjacent marshes support high abundance. The Osage River bottoms concentrate muskrats in good habitat. The Meramec River valley's wetlands are productive. Table Rock Lake's tributaries and reservoir margins host populations. The Current River's clear waters and associated wetlands support muskrats. The Jacks Fork River valley contains productive habitat. Northern Missouri's prairie marshes and glacial wetlands concentrate populations. The Platte River bottoms are reliable viewing areas. Squaw Creek National Wildlife Refuge in northwestern Missouri is noted for waterfowl but also hosts muskrats. Southern Missouri's warm-water lakes and reservoirs support populations in associated marshes. Time visits for dawn and dusk when muskrats are most active. ExploreMissouri's wildlife hubfor additional habitat information.
Typical Behavior of Muskrats
Muskrats are primarily herbivorous, feeding on cattails, arrowhead, water lilies, pondweeds, and other aquatic plants. They also consume freshwater mussels, snails, crayfish, and aquatic insects when plant material becomes scarce. Muskrats are most active at dawn and dusk, spending daylight hours in their lodges or bank burrows. They're excellent swimmers, using their flattened tail as a rudder and webbed hind feet for propulsion. Muskrats often live in family groups within shared territories, without excessive conflict. They're not aggressive toward humans but will defend nesting sites from other muskrats. Females typically produce two litters annually, with four to eight young per litter. Muskrats build distinctive cone-shaped lodges from cattails, mud, and vegetation, often 3 to 4 feet tall. They also burrow into banks, creating extensive tunnel networks. Muskrats don't hibernate but remain active throughout Missouri's seasons. Population levels fluctuate based on water conditions and wetland productivity.
Coexistence and Safety Notes
Muskrats and humans coexist peacefully throughout Missouri. They're not aggressive and actively avoid human contact. Muskrats can occasionally impact drainage ditches or irrigation systems if populations spike, though this is uncommon. It's illegal to harm muskrats outside of Missouri's regulated trapping season. The state manages populations through controlled trapping from November through March, supporting traditional trappers and maintaining sustainable populations. Landowners with concerns about muskrat activity should contact the Missouri Department of Conservation for guidance. Muskrats are not typical rabies vectors, though any wildlife bite requires medical attention. When observing muskrats, maintain distance to avoid disturbing the animals. Muskrats are essential to Missouri's wetland and river ecosystems, maintaining marsh structure and ecological function. Their presence indicates healthy, productive aquatic habitats. VisitMissouri's wildlife hubfor more information about coexisting with native species.
Common Species People Confuse with Muskrats
Several animals in Missouri's waters are mistaken for muskrats. Beavers are the most common confusion because both are large, aquatic rodents. Beavers are significantly larger, weighing 30 to 60 pounds versus 2 to 4 pounds, and have distinctive broad, flat tails. Nutrias, invasive rodents occasionally found in Missouri, are larger at 15 to 20 pounds and have round tails rather than flattened ones. Muskrats' vertically flattened tail is the primary distinguishing feature. Rats are much smaller than muskrats and lack webbed feet. Voles and shrews inhabit wetland edges but are tiny by comparison. Young beavers might superficially resemble large muskrats, but size and tail structure clearly differentiate them. Otters sometimes confuse observers, but otters are longer-bodied, sleeker animals with different swimming patterns. Properly identifying muskrats relies on recognizing their unique tail shape and moderate size. Learning these distinctions prevents misidentification in Missouri's diverse wetland systems.
Frequently Asked Questions
Do muskrats bite? Muskrats avoid humans and rarely bite unless cornered or directly provoked. Wild muskrats prefer escape to confrontation. Can muskrats build dams and flood areas? Muskrats don't construct dams like beavers do. Their burrowing may occasionally affect banks, but they don't impound water. When are young muskrats born in Missouri? Female muskrats produce young from April through August, with most births in late spring. Young become independent at eight to ten weeks of age. Females often raise two litters annually. Are muskrats legal to trap in Missouri? Yes, Missouri allows licensed trapping during November through March. Trapping supports traditional livelihoods and manages populations sustainably. CheckMissouri's wildlife hubfor current season dates, licensing information, and regulations. Learn more aboutMissouri wildlifeand conservation practices.
Plan your muskrat sighting in Missouri
274 verified muskrat records have been logged in Missouri, most recently in 2026. See the GBIF records.
Where to look in Missouri
- George Washington Carver National Monument · Birdwatching · Find hotels
- Lewis & Clark National Historic Trail · Wildlife Watching · Find hotels
- Ozark National Scenic Riverways · Wildlife Watching, Birdwatching · Find hotels
- Ulysses S Grant National Historic Site · Wildlife Watching, Birdwatching · Find hotels
- Wilson's Creek National Battlefield · Wildlife Watching, Birdwatching · Find hotels
- Butterfield Overland National Historic Trail · Find hotels
More places to see muskrat
More wildlife in Missouri