Quinby is a city located in South Carolina. With a 2020 population of 927, it is the 155th largest city in South Carolina and the 10638th largest city in the United States. Quinby is currently declining at a rate of 0.00% annually and its population has decreased by -0.54% since the most recent census, which recorded a population of 932 in 2010. Quinby reached it's highest population of 935 in 2014. Spanning over 1 miles, Quinby has a population density of 709 people per square mile.
The average household income in Quinby is $74,382 with a poverty rate of 7.46%. The median rental costs in recent years comes to $850 per month, and the median house value is $134,300. The median age in Quinby is 45.7 years, 46.2 years for males, and 45.6 years for females. For every 100 females there are 82.4 males.