Fowler, KS has a population of 543 and is the 19,060th largest city in the United States. The population density is 1,146 per sq mi which is 3166% higher than the Kansas average and 1165% higher than the national average. The median age in Fowler is 34 which is approximately 6% lower than the Kansas average of 36. In Fowler, 56% of the population over 15 years of age are married, 77% speak English and 21% speak Spanish. 73% of Fowler residents were born in Kansas, 15% were born out of state, 1% were born outside of the United States and 10% were foreign born.