Bonner Springs, KS has a population of 7,567 and is the 4,894th largest city in the United States. The population density is 484 per sq mi which is 1280% higher than the Kansas average and 434% higher than the national average. The median age in Bonner Springs is 37 which is approximately 3% higher than the Kansas average of 36. In Bonner Springs, 60% of the population over 15 years of age are married, 92% speak English and 6% speak Spanish. 65% of Bonner Springs residents were born in Kansas, 30% were born out of state, 1% were born outside of the United States and 4% were foreign born.