Marlborough is a city located in Missouri. With a 2020 population of 2,179, it is the 227th largest city in Missouri and the 7289th largest city in the United States. Marlborough is currently declining at a rate of -0.14% annually and its population has decreased by 0.00% since the most recent census, which recorded a population of 2,179 in 2010. Marlborough reached it's highest population of 2,193 in 2015. Spanning over 0 miles, Marlborough has a population density of 9,581 people per square mile.
The average household income in Marlborough is $49,677 with a poverty rate of 11.52%. The median rental costs in recent years comes to $781 per month, and the median house value is $151,800. The median age in Marlborough is 29.2 years, 30.5 years for males, and 27.4 years for females. For every 100 females there are 91.5 males.