Waterloo is a city located in Indiana. With a 2020 population of 2,256, it is the 187th largest city in Indiana and the 7175th largest city in the United States. Waterloo is currently growing at a rate of 0.18% annually and its population has increased by 0.62% since the most recent census, which recorded a population of 2,242 in 2010. Spanning over 2 miles, Waterloo has a population density of 1,066 people per square mile.
The average household income in Waterloo is $53,675 with a poverty rate of 10.49%. The median rental costs in recent years comes to $626 per month, and the median house value is $75,600. The median age in Waterloo is 33.7 years, 29 years for males, and 35.7 years for females. For every 100 females there are 104.8 males.