Shirley is a city located in Suffolk County New York. Shirley has a 2020 population of 28,583. Shirley is currently declining at a rate of 0.00% annually and its population has increased by 2.62% since the most recent census, which recorded a population of 27,854 in 2010. Shirley reached it's highest population of 28,698 in 2018.
The average household income in Shirley is $104,511 with a poverty rate of 12.07%. The median rental costs in recent years comes to $1,878 per month, and the median house value is $265,600. The median age in Shirley is 35.5 years, 36.5 years for males, and 34.2 years for females.