Sinking Spring is a city located in Pennsylvania. With a 2020 population of 4,090, it is the 240th largest city in Pennsylvania and the 5342nd largest city in the United States . Sinking Spring is currently declining at a rate of -0.20% annually but its population has increased by 2.05% since the most recent census, which recorded a population of 4,008 in 2010. Sinking Spring reached it's highest population of in . Spanning over 1 miles, Sinking Spring has a population density of 3,297 people per square mile.
The average household income in Sinking Spring is $87,093 with a poverty rate of 17.33%. The median rental costs in recent years comes to $1,101 per month, and the median house value is $189,600. The median age in Sinking Spring is 36.3 years, 36.8 years for males, and 33.7 years for females.