How Wide Is Texas’ Lake Conroe?

Written by Heather Burdo
Updated: July 19, 2023
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Lake Conroe, a gem nestled in the East Texas Piney Woods, is an expansive body of water that has been a cornerstone of recreation, water supply, and habitat for local wildlife. So, how wide is Texas’ Lake Conroe? The lake spans a whopping 21,000 acres and extends about 21 miles in length. It’s located mainly in unincorporated Montgomery County, with a small portion lying within the city of Conroe. The lake is on the West Fork of the San Jacinto River. It is west of Interstate 45 off State Highway 105 in Walker and Montgomery counties.

The Creation of Lake Conroe

Lake Conroe is a popular place for boating and fishing.

Engineers constructed this man-made wonder in 1970 as an alternative water supply for the City of Houston. Construction began in January 1973, and they filled it on October 31, 1973. The creation process involved flooding 21,000 acres of East Texas Piney Woods on the San Jacinto River’s west fork.

The primary functions of the Lake Conroe Division, which is located at the Lake Conroe Dam, include:

Industrial and municipal raw water supply

  • Invasive species management
  • Regulation of structures on the reservoir
  • Water quality and source protection
  • Navigational Safety

Lake Conroe’s Width and Depth

Lake Conroe was made in 1970.

©Mudman Photos/Shutterstock.com

Assuming the average swimmer swims at a speed of about 2 mph, and the St. Clair River is about 0.5 miles wide at its narrowest point (this is a rough estimate, the width can vary), it would take approximately 15 minutes to swim across. However, it’s important to remember that swimming in a river with a current can be more difficult than in a still body of water, like a lake.

The St. Clair River has a maximum depth of 75 feet and a strong current due to its role in connecting Lake Huron and Lake St. Clair. It’s also an active shipping channel. These factors make it potentially dangerous and likely illegal to attempt to swim across.

How Does Lake Conroe Compare to Other Well-Known Lakes?

Lake NameLocationApproximate Width (miles)
Lake ConroeTexas1
Lake TahoeCalifornia/Nevada12
Lake SuperiorMichigan/Wisconsin/Minnesota160
Lake MichiganMichigan/Illinois/Indiana/Wisconsin118
Lake ErieOhio/Pennsylvania/New York57
Lake HavasuArizona/California3
Lake PowellUtah/ArizonaVariable, 25 at widest part
Great Salt LakeUtah28
Comparison of Lake Conroe and other well-known lakes.
Trophy Largemouth Bass

Largemouth bass are one of the most common fish species at Lake Conroe in Texas

©iStock.com/stammphoto

Wildlife at Lake Conroe

Lake Conroe is rich in biodiversity. Some species of fish are largemouth bass, spotted bass, channel catfish, flathead catfish, blue catfish, and black crappie. It even boasts impressive records for catfish, making it one of the best catfish lakes in the state.

The lake also harbors alligators, a small population of bull sharks, and venomous snakes like the western cottonmouth and the copperhead.

fallen timber by lake conroe

Lake Conroe maintains high water quality.

©iStock.com/becky seiler

Water Quality and Recreational Activities

Despite the presence of these wildlife species, the lake maintains high water quality, meeting all Clean Water Act standards for contact recreation, public water supply, and aquatic habitat. It’s a popular destination for water sports, fishing (for which a Texas fishing license is required), and other recreational activities. The lake’s scenic beauty and recreational opportunities have led to it being deemed one of the best lakes in the area, featuring good coves, on-the-water campsites, excellent cruising, fun bars, and great restaurants.

Swimming Across Lake Conroe

If we consider that the average swimmer swims at a speed of about 2 mph, and let’s say hypothetically the lake is about 1 mile at its widest, it would take approximately 30 minutes to swim across. Note, this is a rough estimate and the actual time could vary based on the swimmer’s skill and the lake’s actual width.

Please note that while swimming is a popular activity in Lake Conroe, it’s important to consider potential risks. The lake is home to alligators, bull sharks, and venomous snakes. While encounters with these creatures are rare, caution is advised. Always stay informed about the local wildlife and take necessary precautions when engaging in any water activity.

Attractions nearby Lake Conroe

Crighton Theater

Crighton Theater is a historic theater that has been a focal point of Conroe’s midtown for nearly a hundred years. It continues to be a popular venue for various performances and events, bringing joy to many visitors​​.

Saint Francis Wolf Sanctuary

Saint Francis Wolf Sanctuary is a non-profit organization dedicated to the rescue and care of wolves and wolfdogs. Visitors to the sanctuary can learn about these animals and the roles they play in the ecosystem. The sanctuary is located about 9.7 miles from Lake Conroe Water Sports​​.

The Spa at La Torretta

The Spa at La Torretta is a spa and wellness center in Montgomery, ranked as the #1 of 5 Spas & Wellness in Montgomery. It’s located about 4.2 miles from Texas’ Lake Conroe Water Sports, offering various relaxation and wellness services​.

Conclusion

Lake Conroe in Texas is an impressive body of water that spans 21,000 acres and extends roughly 21 miles in length. It’s more than just a source of water supply for Houston; it’s also a hub of rich biodiversity and recreational activities. With a diverse range of fish species and intriguing wildlife, such as alligators and bull sharks, Lake Conroe offers a unique natural experience.

Recreational enthusiasts find the lake a perfect spot for water sports, fishing, and swimming, despite the need for caution due to its wildlife inhabitants. Beyond the lake itself, nearby attractions like the Crighton Theater, Saint Francis Wolf Sanctuary, and The Spa at La Torretta further enrich the visitor’s experience. All these factors have contributed to making Lake Conroe one of the most cherished lakes in Texas.

The photo featured at the top of this post is © Mudman Photos/Shutterstock.com


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About the Author

Heather Burdo is a digital marketing enthusiast who has written content for countless industries over the last decade. However, content related to animals, nature, and health has her heart. When she's not working her magic with content, she enjoys being with family, going for walks, camping, and gardening. Self-development is non-negotiable for her.

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