La Salle, CO has a population of 2,588 and is the 9,640th largest city in the United States. The population density is 2,702 per sq mi which is 5327% higher than the Colorado average and 2883% higher than the national average. The median age in La Salle is 33 which is approximately 10% lower than the Colorado average of 36. In La Salle, 61% of the population over 15 years of age are married, 72% speak English and 28% speak Spanish. 61% of La Salle residents were born in Colorado, 27% were born out of state, 2% were born outside of the United States and 9% were foreign born.