Bald Knob, AR has a population of 2,906 and is the 8,967th largest city in the United States. The population density is 605 per sq mi which is 990% higher than the Arkansas average and 567% higher than the national average. The median age in Bald Knob is 42 which is approximately 12% higher than the Arkansas average of 38. In Bald Knob, 63% of the population over 15 years of age are married, 96% speak English and 4% speak Spanish. 72% of Bald Knob residents were born in Arkansas, 27% were born out of state, 0% were born outside of the United States and 1% were foreign born.