where is lake martha in washington state
From Wikipedia, the free encyclopedia. Martha Lake is a census-designated place (CDP) in Snohomish County, Washington, United States. The population was 15,473 at the 2010 census. It lies west of Mill Creek and northeast of Lynnwood. Based on per capita income, one of the more reliable measures of affluence, Martha Lake ranks 95th of 522 areas in the state of Washington to be ranked.