Irwin is a city located in South Carolina. Irwin has a 2020 population of 1,303. Irwin is currently declining at a rate of 0.00% annually and its population has decreased by -7.26% since the most recent census, which recorded a population of 1,405 in 2010. Irwin reached it's highest population of 1,690 in 2013.
The average household income in Irwin is $34,291 with a poverty rate of 22.03%. The median rental costs in recent years comes to $791 per month, and the median house value is $79,600. The median age in Irwin is 50.8 years, 47.9 years for males, and 50.8 years for females. For every 100 females there are 61.5 males.