Kosse, TX has a population of 562 and is the 18,834th largest city in the United States. The population density is 436 per sq mi which is 349% higher than the Texas average and 381% higher than the national average. The median age in Kosse is 41 which is approximately 21% higher than the Texas average of 34. In Kosse, 60% of the population over 15 years of age are married, 99% speak English and 1% speak Spanish. 82% of Kosse residents were born in Texas, 17% were born out of state, 1% were born outside of the United States and 0% were foreign born.