Sewickley is a city located in Pennsylvania. With a 2020 population of 3,780, it is the 264th largest city in Pennsylvania and the 5564th largest city in the United States. Sewickley is currently declining at a rate of -0.53% annually and its population has decreased by -1.23% since the most recent census, which recorded a population of 3,827 in 2010. Sewickley reached it's highest population of 6,157 in 1960. Spanning over 1 miles, Sewickley has a population density of 3,782 people per square mile.
The average household income in Sewickley is $134,337 with a poverty rate of 7.27%. The median rental costs in recent years comes to $867 per month, and the median house value is $326,000. The median age in Sewickley is 40.3 years, 34.5 years for males, and 44.4 years for females. For every 100 females there are 86.2 males.