Sunday Lake is located five miles east of Stanwood on a plateau north of the Stillaguamish River. The lake is 48.6 acres in size and quite shallow, with a maximum depth of 20 feet. The Sunday Lake watershed, or the land area that drains into the lake, is mostly undeveloped and covers 851.3 acres.
- Boating (No gasoline-powered motors)
- Lake Access
Fishing InformationThe Washington Department of Fish and Wildlife (WDFW) maintains informational pages for each lake in Washington that include: fish stocking schedules, fishing prospect calendars, and boat launch information.
Sunday Lake has a formal association for residents living on the southeast side of the lake called the Sunday Lake Community Club. The club is dedicated to developing community and protecting the lake and can be contacted by email. You can also connect with the larger lake community by searching for a Sunday Lake community group on NextDoor or Facebook.
Connect with Your Lake Community
Sunday Lake Algae Control Plan
Snohomish County developed this plan in 2019 incoordination with community members in response to ongoing concerns of lake health. The goal is to provide the community with a road map to reduce phosphorus pollution, the underlying source of toxic algae blooms to the lake. Included in the plan are:
- Sunday Lake’s water quality history
- Major sources of phosphorus to the lake
- Options to reduce pollution and reduce toxic algae
- Cost estimates and benefits of each option
- Steps the community could take to implement the plan
Lake Health and Additional ResourcesAs part of Snohomish County's Lake Management Program, County staff and volunteer lake monitors have been tracking the health of Sunday Lake since 1990.
|Health Report Card
|In Depth Health Report
For more historical information on Sunday Lake please refer to the 2003 State of the Lakes Report.
MapsView maps of Sunday Lake and the surrounding area, including the location of public access sites.
Depth contours of the lake
Depth contours of the lake with satellite images