Sturgeon Bay, WI has a population of 9,007 and is the 4,261st largest city in the United States. The population density is 916 per sq mi which is 948% higher than the Wisconsin average and 911% higher than the national average. The median age in Sturgeon Bay is 45 which is approximately 14% higher than the Wisconsin average of 39. In Sturgeon Bay, 66% of the population over 15 years of age are married, 94% speak English and 3% speak Spanish. 70% of Sturgeon Bay residents were born in Wisconsin, 26% were born out of state, 1% were born outside of the United States and 3% were foreign born.