Madrid is a city located in Boone County Iowa. With a 2020 population of 2,529, it is the 134th largest city in Iowa and the 6795th largest city in the United States . Madrid is currently declining at a rate of -0.39% annually and its population has decreased by -0.55% since the most recent census, which recorded a population of 2,543 in 2010. Madrid reached it's highest population of in . Spanning over 1 miles, Madrid has a population density of 2,066 people per square mile.
The average household income in Madrid is $65,272 with a poverty rate of 9.01%. The median rental costs in recent years comes to $756 per month, and the median house value is $135,700. The median age in Madrid is 45.6 years, 44.1 years for males, and 47.4 years for females.