Location of Lochsloy, Washington
|• Total||6.2 sq mi (16.1 km2)|
|• Land||6.2 sq mi (16.1 km2)|
|• Water||0.0 sq mi (0.0 km2)|
|Elevation||236 ft (72 m)|
|• Density||343.5/sq mi (132.6/km2)|
|Time zone||Pacific (PST) (UTC-8)|
|• Summer (DST)||PDT (UTC-7)|
|GNIS feature ID||1506244|
Lochsloy is located at  on Hwy 92 between Lake Stevens and Granite Falls.(48.057026, -122.032325)
According to the United States Census Bureau, the CDP has a total area of 6.2 square miles (16.1 km²), all of it land.
As of the census of 2000, there were 2,135 people, 739 households, and 586 families residing in the CDP. The population density was 343.5 people per square mile (132.5/km²). There were 754 housing units at an average density of 121.3/sq mi (46.8/km²). The racial makeup of the CDP was 95.88% White, 0.28% Black or African American, 0.80% Native American, 0.75% Asian, 0.14% Pacific Islander, 0.61% from other races, and 1.55% from two or more races. Hispanic or Latino of any race were 2.34% of the population.
There were 739 households out of which 39.9% had children under the age of 18 living with them, 66.7% were married couples living together, 6.9% had a female householder with no husband present, and 20.7% were non-families. 14.9% of all households were made up of individuals and 3.9% had someone living alone who was 65 years of age or older. The average household size was 2.89 and the average family size was 3.20.
In the CDP, the age distribution of the population shows 28.0% under the age of 18, 6.7% from 18 to 24, 30.1% from 25 to 44, 27.9% from 45 to 64, and 7.4% who were 65 years of age or older. The median age was 38 years. For every 100 females, there were 104.9 males. For every 100 females age 18 and over, there were 105.9 males.
The median income for a household in the CDP was $52,375, and the median income for a family was $57,350. Males had a median income of $45,313 versus $33,056 for females. The per capita income for the CDP was $23,770. About 1.0% of families and 5.0% of the population were below the poverty line, including 8.1% of those under age 18 and 1.2% of those age 65 or over.