Waterloo is a city in and the county seat of Black Hawk County, Iowa, United States. As of the 2010 United States Census the population decreased by 0.5% to 68,406; the 2016 Census estimates the population at 67,934, making it the sixth-largest city in the state. The city is part of the Waterloo – Cedar Falls Metropolitan Statistical Area, and is the more populous of the two cities.
According to the United States Census Bureau, the city has a total area of 63.23 square miles (163.76 km2), of which 61.39 square miles (159.00 km2) is land and 1.84 square miles (4.77 km2) is water.
The average el...
Source: Wikipedia (as of 04/11/2019). Read more from Wikipedia