Echo Lake /

Echo Lake is a census-designated place (CDP) in Snohomish County, Washington, United States. The population was 849 at the 2000 census. Echo Lake is located at 47°46′54″N 122°2′51″W / 47.78167°N 122.0475°W / 47.78167; -122.0475 (47.781606, -122.047483). According to the United States Census Bureau, the CDP has a total area of 1.7 square miles (4.5 km²), of which, 1.7 square miles (4.4 km²) of it is land and 0.04 square miles (0.1 km²) of it (1.15%) is water. As of the census of 2000, there were 849 people, 275 households, and 237 families residing in the CDP. The population density was 495.8 people per square mile (191.7/km²). There were 284 housing units at an average density of 165.9/sq mi (64.1/km²). The racial makeup of the CDP was 91.28% White, 0.35% African American, 0.59% Native American, 2.00% Asian, 0.12% Pacific Islander, 1.06% from other races, and 4.59% from two or more races. Hispanic or Latino of any race were 3.18% of the population. There were 275 households out of which 44.4% had children under the age of 18 living with them, 74.5% were married couples living together, 8.7% had a female householder with no husband present, and 13.8% were non-families. 6.5% of