Ignacio, CO has a population of 867 and is the 16,047th largest city in the United States. The population density is 2,087 per sq mi which is 4091% higher than the Colorado average and 2203% higher than the national average. The median age in Ignacio is 37 which is approximately 2% higher than the Colorado average of 36. In Ignacio, 54% of the population over 15 years of age are married, 80% speak English and 16% speak Spanish. 64% of Ignacio residents were born in Colorado, 35% were born out of state, 0% were born outside of the United States and 1% were foreign born.