Poplarville is a city in Pearl River County, Mississippi, United States. As of the 2010 census, the city population was 2,894. It is the county chair of Pearl River County. It hosts an annual Blueberry Jubilee, which includes rides, craft vendors and rodeos.

Poplarville was named for Poplar Jim Smith, the original owner of the town site.

In 1959, Mack Charles Parker, an African-American accused of rape, was abducted from the Pearl River County jail in Poplarville by a mob and shot to death. Despite confessions, no charges were filed adjacent to anyone. The mayor of Poplarville told a New York Times reporter, “You couldn’t convict the guilty parties if you had a sealed film of the lynching.” It was the fourth lynching in Poplarville in the past the Civil War. The warfare focused national attention on the persistence of lynching in the South and helped accelerate the American Civil Rights Movement.

On August 29, 2005, Hurricane Katrina inflicted heavy damage on the little town. The storm’s most powerful, unofficially recorded gust of wind was reported at Pearl River Community College, at 135 mph (217 km/h). On September 2, 2005, the 1st Battalion, 134th Field Artillery (Ohio Army National Guard) arrived at the National Guard armory in Poplarville to help the community and Pearl River County in recovery efforts in the wake of Hurricane Katrina. Initial efforts were the security of banks, pharmacies and gas stations as skillfully as initial responses to rural emergencies. The unit stayed for three weeks ultimately checking upon every family and structure in the county. On September 5, 2005, Poplarville played host to a visit by George W. Bush, Laura Bush, and Governor Haley Barbour to Pearl River Community College in the aftermath of Hurricane Katrina.