Keiser, AR has a population of 669 and is the 17,750th largest city in the United States. The population density is 1,802 per sq mi which is 3149% higher than the Arkansas average and 1889% higher than the national average. The median age in Keiser is 29 which is approximately 22% lower than the Arkansas average of 38. In Keiser, 52% of the population over 15 years of age are married, 98% speak English and 2% speak Spanish. 66% of Keiser residents were born in Arkansas, 33% were born out of state, 0% were born outside of the United States and 1% were foreign born.