Bangor Base is a census-designated place (CDP) in Kitsap County, Washington, within U.S. Naval Base Kitsap upon the Kitsap Peninsula. Its population was 6,054 at the 2010 census.

Bangor is located north of the center of Kitsap County at 47°43′15″N 122°42′47″W / 47.72083°N 122.71306°W / 47.72083; -122.71306, on Hood Canal northwest of Silverdale. It is 15 miles (24 km) north-northwest of Bremerton and 21 miles (34 km) by road west-northwest of Bainbridge Island.

According to the United States Census Bureau, the CDP has a total Place of 11.1 square miles (28.8 km²), of which 0.03 square miles (0.08 km²), or 0.26%, are water.

At the 2000 census, there were 7,253 people, 1,282 households, and 1,275 families in the CDP. The population density is 657.1/mi² (253.7/km²). There were 1,316 housing units at an average density of 46.0/km² (119.2/mi²). The racial makeup of the CDP was 76.7% White, 8.1% African American, 1.3% Native American, 4.7% Asian, 0.8% Pacific Islander, 3.9% from supplementary races, and 4.6% from two or more races. Hispanic or Latino of any race were 10.2% of the population.

Of the 1,282 households 79.8% had children under the age of 18 living later than them, 93.4% were married couples bustling together, 4.4% had a female householder once no husband present, and 0.5% were non-families. 0.4% of households were made going on of individuals. The average household size was 3.55 and the average relations size was 3.54.