In 2021, ACS estimated that 53,955 people lived in Severn, the racial breakdown of which is 46.8% White alone, 31.2% Black, 8.8% Asian, 7.6% Hispanic (of any race), 0.1% Native American, and 5.8% two or more races. The population density is .
In 2021, ACS estimated that 53,955 people lived in Severn, the racial breakdown of which is 46.8% White alone, 31.2% Black, 8.8% Asian 7.6% Hispanic (of any race), 0.1% Native American, and 5.8% two or more races. The population density is 