Prestonsburg is a city located in Floyd County, Kentucky. Prestonsburg has a 2026 population of 3,638. It is also the county seat of Floyd County. Prestonsburg is currently declining at a rate of -1.33% annually and its population has decreased by -6.79% since the most recent census, which recorded a population of 3,903 in 2020.
The median household income in Prestonsburg is $25,746 with a poverty rate of 45.3%. The median age in Prestonsburg is 37.6 years: 33.7 years for males, and 43 years for females. For every 100 females there are 95.1 males.