 However, during World War II, the military constructed about 300 residential units to provide housing for workers at the nearby Puget Sound Naval Shipyard in Bremerton.The population of Poulsbo almost tripled over three years, and the diversification of the population led to the dominance of English as the primary language.On October 22, 1975, King Olav V of Norway visited Poulsbo as part of the celebration of 150 years of Norwegian immigration to the United States.