Germantown is a city located in Washington County Wisconsin. With a 2020 population of 20,094, it is the 41st largest city in Wisconsin and the 1846th largest city in the United States . Germantown is currently declining at a rate of -0.05% annually but its population has increased by 1.75% since the most recent census, which recorded a population of 19,749 in 2010. Germantown reached it's highest population of in . Spanning over 34 miles, Germantown has a population density of 585 people per square mile.
The average household income in Germantown is $108,572 with a poverty rate of 3.03%. The median rental costs in recent years comes to $1,064 per month, and the median house value is $264,100. The median age in Germantown is 41.7 years, 40 years for males, and 44 years for females.