Fox Island is located at 47°14′39″N 122°37′12″W (47.244053, -122.619906). There is a dock on the north side of the island. The waters around the island are used for fishing and scuba diving.
According to the United States Census Bureau, the census-designated place has a total area of 6.4 square miles (17 km2), of which, 5.2 square miles (13 km2) of it is land and 1.2 square miles (3.1 km2) of it (18.31%) is water.
Fox Island is separated from the mainland by Hale Passage to the north. The Fox Island Bridge crosses that passage to connect the road network to the mainland at Artondale. A small inhabited island named Tanglewood lies just off Fox Island along the Hale Passage; it was included as part of the Fox Island CDP for the 2010 Census. To the southwest, Carr Inlet separates Fox Island from McNeil Island.
The island was part of the territory of the Steilacoom people, a Coast Salish tribe.
As of the census of 2000, there were 2,803 people, 1,048 households, and 847 families residing in the CDP. The population density was 536.3 people per square mile (206.9/km2). There were 1,150 housing units at an average density of 220.0/sq mi (84.9/km2).
There were 1,048 households, out of which 36.8% had children under the age of 18 living with them, 72.4% were married couples living together, 6.1% had a female householder with no husband present, and 19.1% were non-families. 15.1% of all households were made up of individuals, and 4.8% had someone living alone who was 65 years of age or older. The average household size was 2.67 and the average family size was 2.97.
In the CDP, the population was spread out, with 27.3% under the age of 18, 4.4% from 18 to 24, 25.0% from 25 to 44, 31.8% from 45 to 64, and 11.5% who were 65 years of age or older. The median age was 42 years. For every 100 females, there were 100.6 males. For every 100 females age 18 and over, there were 96.0 males.
The median income for a household in the CDP was $69,135, and the median income for a family was $72,284. Males had a median income of $61,208 versus $39,821 for females. The per capita income for the CDP was $32,533. About 1.7% of families and 3.2% of the population were below the poverty line, including 5.0% of those under age 18 and none of those age 65 or over. Source: (Wikipedia)