South Fork is a city located in Colorado. With a 2020 population of 349, it is the 214th largest city in Colorado and the 14756th largest city in the United States. South Fork is currently declining at a rate of -0.29% annually and its population has decreased by -9.59% since the most recent census, which recorded a population of 386 in 2010. South Fork reached it's highest population of 379 in 2010. Spanning over 2 miles, South Fork has a population density of 140 people per square mile.
The average household income in South Fork is $67,400 with a poverty rate of 8.73%. The median rental costs in recent years comes to $825 per month, and the median house value is $262,500. The median age in South Fork is 60.9 years, 61.9 years for males, and 60.6 years for females. For every 100 females there are 79.5 males.