Lake Loma

Lake Loma is located in the Seven Lakes area north of the Tulalip reservation. Loma is the first in a chain of four lakes and drains westward into Lake Crabapple. The lake is 22.6 acres in size and is relatively shallow, with a maximum depth of 28 feet and an average depth of 11 feet. The watershed, or the land area that drains into the lake, covers 217.9 acres and approximately 40% of the land is developed.

Recreational Opportunities

  • Boat Launch
  • Boating (No gasoline-powered motors)
  • Fishing
  • Lake Access
There is a primitive public boat launch at the northeast corner of the lake, as shown on the bathymetric maps below. Internal combustion motors are not allowed on Lake Armstrong - see Snohomish County Code Title 12 and the Parks and Recreation Boating Regulations for more information.

Fishing Information

The 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.

Connect with Your Lake Community

Lake Loma does not have a formal lake association. However, you may be able to connect with other lake area residents by looking for a Lake Loma community group on NextDoor or Facebook.

Lake Health and Additional Resources

As part of Snohomish County's Lake Management Program, County staff and volunteer lake monitors have been tracking the health of Lake Loma since 1992. 

Health Report Card

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In Depth Health Report

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For more historical information on Lake Loma please refer to:

Lake Loma Algae Control Plan

Snohomish County developed this plan in 2019 in coordination with community members in response to ongoing concerns of lake health. The goal of this plan 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:

  • Major sources of phosphorus to the lake
  • Effective solutions to control the pollution and reduce toxic algae
  • Cost estimates and benefits of each option
  • Next steps for the lake community to implement the plan

If implemented, there will be long-term benefits to the health of Lake Loma including reduced occurrence of algal blooms, increased water clarity and improved dissolved oxygen levels in the lake. The lake community will now need to collectively decide if the benefits of the implementation plan are worth the required financial and time investment. The first step would be for interested residents to create a committee to review the plan and propose a path forward to the broader community. Click on the icons below to learn more.

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Algae Control Plan


Online Presentation



View maps of Lake Loma and the surrounding area, including the location of public access sites.

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Area that drains to the lake

Bathymetry Map Opens in new window
Depth contours of the lake

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Depth contours of the lake with satellite images