Pulaski County is a county in the U.S. Commonwealth of Kentucky. As of the 2020 census, the population was 65,034. Its county seat is Somerset. The county was founded in December 1798 from land given by Lincoln and Green Counties and named for Polish patriot Count Casimir Pulaski. Pulaski County comprises the Somerset, KY Micropolitan Statistical Area. Somerset's population is just over 11,000, but the Micropolitan Area for Somerset/Pulaski County is over 65,000.