Chipley is a city in Washington County, Florida, United States. Its population was 3,592 at the time of the 2000 U.S. Census. According to the United States Census Bureau estimates of 2005, the city had a population of about 3,682. Chipley is the county seat of Washington County, Florida. Originally called "Orange", the city was renamed Chipley in 1882, for the railroad businessman and Florida State Senator William Dudley Chipley.