Bridgewater is a city located in South Dakota. With a 2020 population of 461, it is the 125th largest city in South Dakota and the 13693rd largest city in the United States. Bridgewater is currently declining at a rate of 0.00% annually and its population has decreased by -6.30% since the most recent census, which recorded a population of 492 in 2010. Bridgewater reached it's highest population of 490 in 2010. Spanning over 1 miles, Bridgewater has a population density of 410 people per square mile.
The average household income in Bridgewater is $65,729 with a poverty rate of 7.78%. The median rental costs in recent years comes to $490 per month, and the median house value is $73,200. The median age in Bridgewater is 46.8 years, 33 years for males, and 56.3 years for females. For every 100 females there are 109.3 males.