Lake Washington spans 1,516 acres with 13.2 miles of shoreline, making it one of the largest lakes in southern Minnesota. The lake is located primarily in Le Sueur County, with a small portion extending into Blue Earth County, approximately 10 miles from Mankato.

The lake supports major water sports activities and attracts numerous visitors throughout the year. With approximately 450 homes along its shoreline and 80 percent of residents living on the lake full-time, paddlers can expect a developed lakefront environment rather than wilderness conditions.

Fishing is a prominent activity on Lake Washington, with the lake known for its populations of crappies, bass, northern pike, and walleye. This active fishing community means paddlers should be aware of anglers and fishing boats, particularly during peak fishing seasons.

The Lake Washington Association maintains detailed maps of the area, including buoy maps, lake maps, and water depth maps, which can be valuable resources for paddlers planning routes and understanding lake navigation. A historical 1902 map also provides perspective on the lake's long-standing recreational use.

The association monitors water quality conditions, including algae blooms, which paddlers should consider when planning trips. Current information about water conditions can be obtained through the Lake Washington Association's resources.

The lake's substantial size and extensive shoreline provide ample opportunities for day-long paddling excursions. However, the combination of residential development, active boating, and fishing means this lake offers a more social paddling experience rather than a remote wilderness setting. Paddlers should be prepared to share the water with various watercraft and respect the established lake community.