Mullinville, KS has a population of 197 and is the 24,497th largest city in the United States. The population density is 329 per sq mi which is 837% higher than the Kansas average and 263% higher than the national average. The median age in Mullinville is 36 which is approximately 1% lower than the Kansas average of 36. In Mullinville, 67% of the population over 15 years of age are married, 91% speak English and 9% speak Spanish. 83% of Mullinville residents were born in Kansas, 15% were born out of state, 0% were born outside of the United States and 2% were foreign born.