Colp, IL has a population of 219 and is the 24,048th largest city in the United States. The population density is 1,573 per sq mi which is 590% higher than the Illinois average and 1636% higher than the national average. The median age in Colp is 34 which is approximately 10% lower than the Illinois average of 37. In Colp, 53% of the population over 15 years of age are married, 87% speak English and 12% speak Spanish. 76% of Colp residents were born in Illinois, 24% were born out of state, 0% were born outside of the United States and 0% were foreign born.