La Junta, CO has a population of 6,978 and is the 5,189th largest city in the United States. The population density is 2,314 per sq mi which is 4547% higher than the Colorado average and 2454% higher than the national average. The median age in La Junta is 40 which is approximately 9% higher than the Colorado average of 36. In La Junta, 58% of the population over 15 years of age are married, 82% speak English and 15% speak Spanish. 62% of La Junta residents were born in Colorado, 30% were born out of state, 1% were born outside of the United States and 8% were foreign born.