Welcome to Lake Washington

Lake Washington is located primarily in Le Sueur County, with a small part of the lake in Blue Earth County, approximately 10 miles from Mankato. The lake is one of the largest in southern Minnesota at 1487 acres with 13.2 miles of shoreline. Lake Washington has approximately 450 homes and countless visitors. Presently 80 percent of the residents live on the lake full time. Fishing and water sports are major activities on the lake. Washington is the favorite of many fishermen because of the many Crappies, Bass, Northern Pike, and Walleye in the lake. There are two public access ramps on the lake for launching boats.

The lake is the home of Camp Patterson that has provided a lake experience for young boys and girls since 1923. The Kiwanis Club of Mankato operates the camp. Westwood Marina Bar and Grill provides a wonderful atmosphere to relax and enjoy a wonderful view of the lake activities.

In the year 2005 Lake Washington properties were connected to the Mankato sanitary sewer system. This system will help to control pollution in the lake and improve the lake for all residents.

The Lake Washington Improvement Association's board of directors meet monthly. This association is the voice of and advocate for lakeshore owners. Your participation and support makes the LWIA even stronger. Please review our recent newsletters for timely and important information about what the LWIA is doing on your behalf. Please go into each category on the left side of the home page where you will find information about our projects, our board members and articles of interest.

Lake Washington Maps

Buoy Map

Water Depth Map

Weed Treatment Areas for 2023

Lake Map

Message from the Sheriff!

Greetings to Lake Washington residents:

The LeSueur County Sheriff's Office provides services to 14 townships and 9 cities that cover 467 square miles and a large number of lakes. In addition to traditional patrol and investigative duties, the Criminal Investigation Unit participates in a Countywide Drug Task Force. The department includes specialized units that serve and execute civil process and criminal warrants, transport prisoners, provide court security, communications and recreational safety.

The Adult Detention Division operates the Law Enforcement Center under the direct supervision concept, and has received a 100% inspection rating from the Minnesota Department of Corrections for the last 9 years.

The LeSueur County Sheriff's Office also provides the following services: Boat & Water Patrol, S.E.R.T.(Sheriff's Emergency Response Team), 2- K-9 Units, The LeSueur County KidPrint Program, Search & Rescue Dive Team, D.A.R.E. Program, Tip Program and a Mounted Posse.

The staff at the LeSueur County Sheriff's Office is committed to making LeSueur County a safe enjoyable place for you and your family to live and work.

If you have any questions or concerns please feel free to contact me at the Sheriff's Office 507-357-8245. If you have immediate concerns, please call our dispatch center at 507-357-4440 and a dispatcher will assist you

Have an enjoyable year,
Sheriff Brett Mason
LeSueur County