Why is the Mississippi River Important? Discover 5 Incredible Facts

Written by Jennifer Gaeng
Published: May 22, 2022
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There are 2,340 miles of the Mississippi River, making it the third-longest river in North America. It’s one of the world’s most important waterways for the transportation of goods and food. In this post, we’ll look at five fascinating facts about the Mississippi River’s significance. Let’s begin!

1. The Mississippi River Has an Abundance of Wildlife!

Mississippi National River and Recreation Area

The Mississippi River is home to numerous wildlife species.

©NPS/Gordon Dietzman / Public Domain – License

Did you know there are 360 different species of fish, 326 different species of birds, 145 different species of amphibians, and 50 different species of mammals that live in or by the Mississippi River? Let’s dive into the various species that call the Mississippi River and its nearby land regions home.


The Mississippi River is home to a variety of mammals, from small, elusive northern shrews to larger, more conspicuous species such as bats, otters, beavers, coyotes, and white-tailed deer.


The Mississippi River contains a vast variety of bird habitats, making it a sanctuary for numerous species. Both in the spring and the fall, the river serves as an important migratory corridor for birds.


Mussels play an important role in the river’s ecology and have unique life histories, although are frequently disregarded.


Fish populations have made a spectacular rebound in recent years after massive pollution decimated their populations. Because of their presence, many species such as eagles, otters, herons, mussels, and more can thrive in the river!


Although bugs can be annoying, they do serve a purpose. For example, they clean up dead animals and plants, feed birds and other wildlife, and pollinate crops. They are vital to the Mississippi River and its environment.  

Reptiles and Amphibians

Amphibians and reptiles, particularly snakes, live across the Mississippi River and are necessary to keep the balance in the ecosystem. One of the snakes in the Mississippi River is the northern water snake. In the river, it can be spotted lurking in the bushes and swimming along the bank.

2. The Mississippi River Borders Multiple States

Mississippi River - New Orleans

The Mississippi River crosses ten states in the US.

©Sean Pavone/Shutterstock.com

10 states share the Mississippi River as a border.

  • Arkansas
  • Illinois
  • Iowa
  • Kentucky
  • Louisiana
  • Minnesota
  • Mississippi
  • Missouri
  • Tennessee
  • Wisconsin

Along this great American waterway, there is so much to view that it is easy to miss a few nuances. The connection that the river provides, which drains 41% of the United States and carries more water than any other river in the country, is still very important. The Upper Mississippi River National Wildlife and Fish Refuge are in Iowa’s Davenport region, to the north of that city.

Recreation opportunities become less available south of St. Louis, as river access is blocked by levees. The Mississippi National River and Recreation Area in Minnesota is one of seven National Park Service sites located along this stretch of water in Minnesota.

3. Lake Itasca Feeds The Mississippi River

lake itasca

Lake Itasca is the headwater of the Mississippi River.


In northern Minnesota, Lake Itasca supplies the Mississippi River. The river flows south to the Gulf of Mexico. This lake is a 1.8-square-mile (1,200-acre) glacier lake. It’s the headwater of the Mississippi River in southeastern Clearwater County, north-central Minnesota.

A river’s headwaters are its origin. Even if a river becomes enormous and powerful, its headwaters aren’t. Some headwaters are underground springs. Others are alpine snow-fed marshes. A river’s headwaters can be thousands of little streams or a lake or pond trickle. Anything that happens in the headwaters impacts everything downstream.

4. The Mississippi River’s Deepest Point Is 200 Feet

The Mississippi River is at its deepest at Algiers Point.


The Mississippi’s depth varies, so be aware of your surroundings. At Algiers Point in New Orleans, the Mississippi River is at its deepest, which is 200 feet deep. The river alternately scours and deposits silt, therefore its depth changes.  In river pilotage, Algiers Point is just one of numerous land points around which the river flows; however, it is truly a unique area. It’s connected to downtown by one of the nation’s oldest ferry lines. A boat puts you on Algiers Point’s levee, as it has for 300 years.  Its pace may be slow, but its Victorian-style wood houses yell their individuality.

5. The Mississippi River Ranges From 20 Feet To 11 Miles At Its Widest!

lake itasca 2

Mississippi is more than 11 miles wide in Bena, Minnesota.

©Tomaz Kunst/Shutterstock.com

The Mississippi River’s breadth ranges from 20 to 30 feet at its narrowest point to 11 miles wide at its widest point! A stretch of the Mississippi that is more than 11 miles wide is in Bena, Minnesota at Lake Winnibigoshish. Lake Pepin, where the shipping channel is about two miles wide, is the widest navigable portion of the Mississippi. The next widest point is immediately downstream from the confluence with the Missouri River, near Alton, Illinois, excluding some lakes in Minnesota and Wisconsin. It spans 1 mile (1.6 kilometers).


A great adventure is having one’s eyes opened to the length and breadth of the Mississippi River’s reach. The river is an essential resource since it provides hydroelectric power, drinking water, and habitat for a diverse array of species. Above the junction of the Ohio River and the Little Mississippi, barges carry more than half of the country’s corn and soybeans. It should come as no surprise that the development of industry and the preservation of the environment in the United States are both dependent to a significant degree on the country’s expansive Mississippi River system.

The photo featured at the top of this post is © Milen Mkv/Shutterstock.com

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About the Author

Jennifer Gaeng is a writer at A-Z-Animals focused on animals, lakes, and fishing. With over 15 years of collective experience in writing and researching, Jennifer has honed her skills in various niches, including nature, animals, family care, and self-care. Hailing from Missouri, Jennifer finds inspiration in spending quality time with her loved ones. Her creative spirit extends beyond her writing endeavors, as she finds joy in the art of drawing and immersing herself in the beauty of nature.

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