All are named after William Jasper.
- one of 159 counties in Georgia, USA, with its county seat in Monticello.
- one of 102 counties in Illinois, USA; county seat Newton.
- one of 92 counties in Indiana, USA; county seat Rensselaer.
- one of 99 counties in Iowa, USA; county seat Newton.
- one of 82 counties in Mississippi, USA; county seats Bay Springs and Paulding.
- one of 114 counties in Missouri, USA; county seat Carthage.
- one of 46 counties in South Carolina; county seat Ridgeland.
- one of 254 counties in Texas; county seat Jasper.