Waterbury is a city located in New Haven County, Connecticut. With a 2020 population of 107,701, it is the 5th largest city in Connecticut (after Bridgeport, Stamford, New Haven, and Hartford) and the 289th largest city in the United States. Waterbury is currently declining at a rate of -0.18% annually and its population has decreased by -2.41% since the most recent census, which recorded a population of 110,366 in 2010. Waterbury reached it's highest population of 110,371 in 2010. Spanning over 29 miles, Waterbury has a population density of 3,776 people per square mile.
The average household income in Waterbury is $57,251 with a poverty rate of 23.01%. The median rental costs in recent years comes to $959 per month, and the median house value is $128,800. The median age in Waterbury is 35 years, 33 years for males, and 36.6 years for females. For every 100 females there are 91.1 males.