Erie is a city located in Boulder County, Colorado. With a 2020 population of 28,003, it is the 28th largest city in Colorado and the 1357th largest city in the United States. Erie is currently growing at a rate of 4.78% annually and its population has increased by 54.41% since the most recent census, which recorded a population of 18,135 in 2010. Spanning over 20 miles, Erie has a population density of 1,421 people per square mile.
The average household income in Erie is $133,173 with a poverty rate of 4.51%. The median rental costs in recent years comes to $1,809 per month, and the median house value is $437,000. The median age in Erie is 36.8 years, 37.4 years for males, and 36.3 years for females. For every 100 females there are 98.5 males.