St. Helens is a city located in Oregon. With a 2020 population of 13,711, it is the 41st largest city in Oregon and the 2457th largest city in the United States . St. Helens is currently declining at a rate of -0.10% annually but its population has increased by 6.43% since the most recent census, which recorded a population of 12,883 in 2010. St. Helens reached it's highest population of 13,753 in 2018. Spanning over 6 miles, St. Helens has a population density of 2,855 people per square mile.
The average household income in St. Helens is $65,628 with a poverty rate of 16.82%. The median rental costs in recent years comes to $901 per month, and the median house value is $228,500. The median age in St. Helens is 36.2 years, 33.9 years for males, and 39.2 years for females.