There are 5 US Post Offices in Haskell County serving a total of 5,631 residents equating to 1,126 residents per post office. It's estimated that approximately 8,988 packages are handled across the 5 county post offices annually. Haskell County is a county located in the U.S. state of Texas. As of the 2010 census, its population was 5,899. The county seat is Haskell. The county was created in 1858 and later organized in 1885. It is named for Charles Ready Haskell, who was killed in the Goliad massacre. Haskell County is the home county of former Texas Governor Rick Perry. Republican Drew Springer, Jr., a businessman from Muenster in Cooke County, has represented Haskell County in the Texas House of Representatives since January 2013."